Hello,


I know that their is much debate over this, but I would like to study the affects of running a ratio of waste oil. How much could we use? How much filtering should be done? Pleas let me know what you all think.


thanks

i run..pm me

Cummins says up to 5% is OK IF you don't have a catalytic converter.

I run 2 qts per tank when I have it and the weather is warm. I pour it from the drain pan into the gallon jugs through a screened funnel, then from the gallon jugs into quarts through one of those disposable paint filter funnels.

I have not noticed any driveabilty or smoke difference from this amount of oil in the fuel.

I also do this everytime I change my oil and use 1 gallon per fill-up, I have a FASS so I dont worry too much about doing any additional filtering. Some have said that doing this with a synthetic oil would not work to well but I have not switched over to that and even when I do I doubt the small amounts of it in the fuel would make that much of a difference.

When 1st got my truck I had 4 quarts of oil of different grades and manufacturers. I dumped them all in when I filled up and didn't notice any difference in power or smoke.

Let me get this straight! You can dispose of old oil in the engine? Does this help anything or is it just another way to get rid of it?

Thanks

what about other oils besides motor oil? hydraulic oil, gear oil, etc.

I would be reluctant to dump gear oil in there no matter how well it's been filtered. It typically has extreme pressure addtives in high concentrations, they will cause nasty deposits in the combustion chambers.

I played with it to see just how much I could run ,and 3 gal per ful tank seems to be a good point to stop, I noticed that if i run more it starts to stink real bad out the tail pipe and makes a lot more smoke at low boost . but other that that i have seen no other ill FX
PS I only run it in my ve pump cuz i just dont trust the VP44

I havent tried higher potions or other types of oils but without the FASS I would hesitate to run much more than that. The Fass mixes it very well before being pumped into the engine and also filters it thoroughly as well. If I had a stock fuel system I dont know if it would work as well. I also have been told older truck can handle more of a higher concentration than the 3 Gens.

Originally posted by dig'umz
Let me get this straight! You can dispose of old oil in the engine? Does this help anything or is it just another way to get rid of it?

Thanks

Any real benefits (not opinions) to running waste oil ? Can it be a replacement for Stanadyne and such?....that would save some bucks for other bombs !!!:D

It will improve the lubricity of the fuel. It's 3 gallons of diesel you don't have to buy every oil change interval. And Cummins says it won't hurt anything if you don't use more than 5% by volume.

so this would be bad for a stock 01 fuel system?

No, but remember this has to be clean (no trash) waste oil. You want to have a clean drain pan (mine is one of those covered pans, I clean the top before I drain the engine). The oil coming out of the engine has been filtered by the oil filter and is clean, you want to minimize the amount of dirt you add to it. I only use my own oil and the oil out of the cars I maintain for family members - I know what kind of oil it is and where it came from. If you just go around collecting used oil you could end up with contaminated oil - stuff that has lots of dirt, or something nasty like brake fluid or coolant in it. I never use ATF, PS fluid, gear lube, or oil from the lawn mower, that goes to the auto parts store for recycling.

I'm scared to run waste oil in my new 05, so I mix powerservice with a non-detergant 30 weight oil. You can find it at walmart for around 88 cents per quart. I tend to run 2 quarts per tank. I've also tried ashless 2-stroke oil too and did not notice any differerance.

Howdy! New to the forum...
Just traded my 01 F250 PSD for a 04.5 CTD 2500 4X4!
I love the truck but miss the room!

I ran used waste oil in my PSD for about 30K miles at a 45% mix. No Loss of power or mileage. I mixed diesel and motor oil in a 55 gal drum and used a 12v pump to circulate it through a TP Bypass filter for a couple of hours and then through a regular fuel filter into my 60 Gal auxiliary fuel tank. I just started mixing different %'s until a got to 50% and noticed some smoke during acceleration (more than normal) and then backed off a notch.. Bam! 1/2 priced Fuel!
I just installed the tank in the Dodge and I am going to rig it up so that the stock fuel gauge will work when I switch over to the aux tank... Sweet Setup from Northern Tool >> But cost a bunch!

I love the Forum... Very informative and not as many poeple complaining about ther truck!! To Tell you the truth... That is the main Reason I Choose the Ram!

OilGuy

Please keep me posted on how this mix does in the new Dodge. I am interested in doing this and have run much lower percentages with no problems but 45% that would save a lot of $$$. I have access to waste oil and I am thinking the my FASS with the extra filtering plus water seperator should filter out all of the junk from the wadste oil that I dont want in the motor. With fuel so high there has got to be a way to run waste oil safely.

Cummins says 5%, and the old rule of thumb was 10% max. My 3208 will start banging at 20%. I would not think of going over 5%. It will give a bit more mileage with it in.

I get about 600 gallons of used oil a week, never heard of dumping it in the tank. Other than geting rid of waste oil what are the main advantages of this?

Now ya'll got me excited about this.... I have 15 gallons of oil in the garage now trying to figure out what to do with it

I originally got the idea from a dodge forum thread (not this one) where people were mixing 30 to 50% in their truck with some that have gone 80+K Miles and if I remember right there was one that had closer to 200K miles with no related problems. I will dig around to see if I can find it again but I was looking for WVO information... Also you can Googe "Black Diesel" and get some information. I have an endless supply of waste oil (Quick lube business) and got really excited when I found this!
OilGuy

How would this work in cold climates? Would we need to heat the tank to avoid clogging or does oil and diesel have similar characteristics in the winter?

I know 15W40 is thick when its cold. Wondering what issues I might encounter if I did this.

Scotty

If you were to try running a high percentage in cold weather you would have problems. Oilguy doesn't have winter as such. [laugh]

Scotty, if that truck still has a cat the extreme pressure additives in the oil will cause it to stop working. I feel like if it's gonna be on there you shouldn't ruin it.

Yup... No winter here... Hot and dam hot are the seasons here in Texas. However I try to only run lighter weigh oils and as little syn as possible.. Too many friction modifiers >> They don't burn very well... I also run the aux tank and leave the stock tank with pure diesel so if my blend causes smoke I just run it on the highway and then switch when I get in town to keep it from smoking at idle. Then after I run the tank down a bid... I top it back off with pure diesel to dilute it. This is probably not a project for eveyone... just those of you that can deal with everyone thinking you are crazy!...

WannaDiesel... I see that you have a water/meth setup on your rig... Do you like it??.. I am thinking of puting that on mine before I go back with the fuel/oil mixture.

OilGuy

For WVO info here is a good place to look
http://www.frybrid.com/test.htm
Also check out;
http://biodiesel.infopop.cc/eve/ubb.x?a=frm&s=447609751&f=159605551
Ken

Seems to be a confusion here between WO and WVO. I have been talking about drain oil from the engine.

I have been running drain oil in my 90 for as long as i have had it (bought new)
it now has over 300k with the same IP and Injectors ,and runs like a champ, but i think its time for new injectors cuz my MPG is way low

Originally posted by Oilguy
WannaDiesel... I see that you have a water/meth setup on your rig... Do you like it??.. I am thinking of puting that on mine before I go back with the fuel/oil mixture.

OilGuy Very much! :) 200 degree EGT drop, and you can see the power/torque gains in my sig. :cool:

Ok guys, Im kind of new to this. I drive an old gmc diesel but, next month im buying a used but new to me 98 to 03 dodge CTD. This is the first ive heard of this. so tell me if i have this right? You can actually add a percentage of used filterd diesel oil into the fuel and run the truck on this as long as the truck does not have a cat on it?

Yep, that's it in a nutshell. :) Cummins says not more than 5%. The oil doesn't have to be out of a diesel, oil out of a gasser will do just fine.

Hey guys,
How about burning synthetic? I use Mobil 1 and it would be nice to use it up in the fuel tank.
Thanks,
Topper

A fellow on another website said he tried using used Amsoil and his truck smoked real bad.
The guy who I give my waste oil to for his shop heater will take ATF, hydraulic fluid, motor and gear oil, but says no synthetics, they gum up the jets on his heater.

Beware with waste oil in the tank, it is against smog laws in some states. If you ever get dipped and they see black fuel you might be getting a ticket.
I would check first.

I'm currently burning Rotella T synthetic and have noticed no difference.

can anybody tell me the pro's and con's of burning waste oil?

Just put 3.5 quarts of 10w-30 into about 30+ gallons of #2 fuel. (Changed the oil in the wifes Civic) and decided to pour it into the trucks tank.:o It was a pain in the butt cause I had to super clean the oil catcher pan. It took me at least 15 min to clean it up and was wondering if it was worth my time to save a couple bucks.

Dusty, that's why I don't mess with it, not worth my time even though I generate a couple hundred gallons of waste oil per year.
You can't really equate the dollar value of the waste oil to be the same as diesel fuel since 100% waste oil won't get you the same mpgs or power as the same amount of fuel.
The only thing I see going for burning waste oil is if you have a hard time getting rid of it.

How in the world do you develope a few hunderd gallons of waste oil per year? What kind of oil do you use?

Originally posted by o2man98
How in the world do you develope a few hunderd gallons of waste oil per year? What kind of oil do you use? Two semis, twelve tractors, five pickups, combine, forklift, a few passenger cars, etc, etc.
I use Delo 15w40 in all of them, gasser or diesel.

Originally posted by plow
can anybody tell me the pro's and con's of burning waste oil?

pros. lubricated fuel pump $10. of fuel you dont need to buy dont need to worry about getting rid of your drain oil

cons. just dont add to much and you will be fine

I use Amsoil, but when I tried buring it last winter it did not go so well. I only added 2 quarts, but the truck smoked real bad. Is this a synthetic thing or a cold thing?

Originally posted by wannadiesel
Scotty, if that truck still has a cat the extreme pressure additives in the oil will cause it to stop working. I feel like if it's gonna be on there you shouldn't ruin it.

No cat...04 did not come with one.

Scotty

Hey guys,
I put 4 qrts of Mobil 1 in my trucks fuel tank (full tank)Fri.morning and headed to Virginia. No problems and no noticeable difference in power or smoke. I checked my fuel milege and averaged 20.1 mpg. Steady 75mph.
Topper

Was that including the extra gallon in your calculations? I thought mine went up a tick until I did some more thinking and realized I wasn't accounting for the extra "fuel" in the tank. When I add the oil to the diesel when calculating mileage, my mileage is the same as on straight diesel.

I drove 428 miles and when I filled up I put in 21.29 gals of fuel.
Topper

Originally posted by DustyRock
Just put 3.5 quarts of 10w-30 into about 30+ gallons of #2 fuel. (Changed the oil in the wifes Civic) and decided to pour it into the trucks tank.:o It was a pain in the butt cause I had to super clean the oil catcher pan. It took me at least 15 min to clean it up and was wondering if it was worth my time to save a couple bucks.

Well it seems to run fine. Too bad it is a pain to keep the oil change pail clean. I have another 4 qts ready for next fill up. I am going to keep the oil change pail wrapped in a plastic garbage bag to keep it free from debris for next oil change.:cool:

Do you guys think the fuel filter will get plugged faster running old oil ?

I change mine yearly, I cut the last one open and there was no sign of any buildup on the surface of the media. I was looking for big trash or metal on the surface and didn't find it. Basic cleanliness seems to be enough to keep the big trash out.

This is getting interesting. Do you think 1qt. used oil per tankful provides as much lubrication as 1/3 qt. of a popular fuel treatment? Seems like an old time toilet paper filter would remove any abrasive contaminants and near about anything else.

Anyone doing this in 3rd gens?

I dump all 3 gallons in the tank at once then go filler up

I'm too afraid to run waste oil in mine, especially of the HPCR, but I do run a non=detergant 30wt oil.

i have run rotella,hydraulic fluid and cutting oil from my buddies machine shop. i dump 3 gallons in every chance i get. i burned 10 gallon of hydraulic fluild on a 1500 mile trip in 26 hrs. the miliage stayed about the same. i have never had a problem burning it.

Gunracer:
How do you filter, especially the cutting oil before putting it in the tank ?

Get a remote fuel filter at Tractor Supply and a 12v pump... Put the pump so that you are sucking through the filter ( this will make the pump last a lot longer with having to slean it out... then you just need to add hoses and away you go!
I have one set up with a filter on both sides just for CYA reasons
OilGuy

anybody had any trouble usin burnt oil in 2nd gen 24v being they seem to have a moody injector pump

and is there and online publications cummins have out there sayin it is ok?

I would love to be able to do this being I have such a good supply of used oil as long as I can keep the old vp44 happy

Read Infidels post here. This is an older thread on running used oil.
http://www.dieseltruckresource.com/dev/showthread.php?s=&threadid=63264&highlight=used+oil

Dusty

the used oil is good for the pump,valves and it burns clean.
to see just how clean it burns just look at wannadiesel avitar[laugh]

Here at the plant we have gone away from it due to concerns about particle contamination. The filters on the 980G are 5 micron I'm told. The concern is scoring the insides of the injection pump. Thinking is that there is no problem on the 20 year old dozer but the new 980G and the 771's not a chance worth taking.

5 microns ... the filters take anything out that will hurt the pump...anything that gets past them should not hurt it cus it will be less then 5 microns

Originally posted by wannadiesel
I'm currently burning Rotella T synthetic and have noticed no difference.

Rotella T synthetic is not a true synthetic or PAO base stock, it's just super refined dino oil. Just wanted to throw that in there for the ones comparing dino to synthetic oil for burning purposes and different effects one or the other might have.

I just started using my old oil as a fuel. Just using 1gal per fillup so far no problems. As far as Cummins saying use no more than 5%.... I CANNOT FIND THIS INFO ON THEIR WEBSITE. They talk about not using more than 5% bio-diesel, but never mention waste oil...at least from what I can find. Can someone show me the quote.....PLEASE

Originally posted by DustyRock
Gunracer:
How do you filter, especially the cutting oil before putting it in the tank ?

my buddie has a pump with a 1 or 2 micron system that we use to put the old cutting oil through. the motor oil i just drain it into a clean tub and dump it in.

So is it OK to run wast oil in the third gen trucks? Looks like most of you guys have the first or second gen. trucks. I'd really like to try this but wanted to ask this first....LCH

oilguy on page 4 is in his 04.5, or at least it looks that way.

Originally posted by Scotty
oilguy on page 4 is in his 04.5, or at least it looks that way.
On page 2 he says he just traded his PS that he ran waste oil in for his 04.5 and I don't find where he says he is actually running it in ther yet just installing the tank to do so. I was hoping to hear from someone that has been doing this for at least a few months without any problems. Thanks for the reply though...:D LCH

Originally posted by LCH
On page 2 he says he just traded his PS that he ran waste oil in for his 04.5 and I don't find where he says he is actually running it in ther yet just installing the tank to do so. I was hoping to hear from someone that has been doing this for at least a few months without any problems. Thanks for the reply though...:D LCH

Like I said...at least it looked that way, I was thinking the same thing as you. It would be nice if someone would give some feedback.

you go first. [laugh]

Right now I am working on a whole new project but I am up to about 20% mix right now with only about 1000 miles and no problems and no smoke. I have only been running light oils such as 10w30 because I had the best luck with that on my Ford.
I hope to have my fuel processor running by the end of next week and I won't have to worry about that any more. But that is a whole new thread...
OilGuy

Originally posted by Scotty
Like I said...at least it looked that way, I was thinking the same thing as you. It would be nice if someone would give some feedback.

you go first. [laugh]
No really you first LOL makes me think of thoes little chipmunks [laugh] no you first, no after you....LCH

Originally posted by LCH
So is it OK to run wast oil in the third gen trucks? Looks like most of you guys have the first or second gen. trucks. I'd really like to try this but wanted to ask this first....LCH Cummins offers the Centinel system on it's common rail engines so I would think burning waste motor oil on a 3rd gen would be ok. The Centinel pumps small amounts of highly filtered engine oil into your fuel tank while adding the same amount of new oil to the engine at the same time. They say with this system that oil changes are extended to 500,000 miles.
Read more about it here http://www.cummins.com/au/pages/en/products/genuinepartsandservices/extendedlifeproducts/centinel.cfm

Lets get things straight here, I'm talking used motor oil, not used deep fryer oil (WVO).
WVO contains all kinds of residues that can damage your engine and can't be filtered out such as salt, sugar, msg, etc. Although some people run WVO without processing you mainly see it used on older diesels. If you are going to use WVO on an engine you want to keep for a long time you are much better off converting the WVO to biodiesel.

Originally posted by infidel
Cummins offers the Centinel system on it's common rail engines so I would think burning waste motor oil on a 3rd gen would be ok. The Centinel pumps small amounts of highly filtered engine oil into your fuel tank while adding the same amount of new oil to the engine at the same time. They say with this system that oil changes are extended to 500,000 miles.
Read more about it here http://www.cummins.com/au/pages/en/products/genuinepartsandservices/extendedlifeproducts/centinel.cfm

Lets get things straight here, I'm talking used motor oil, not used deep fryer oil (WVO).
WVO contains all kinds of residues that can damage your engine and can't be filtered out such as salt, sugar, msg, etc. Although some people run WVO without processing you mainly see it used on older diesels. If you are going to use WVO on an engine you want to keep for a long time you are much better off converting the WVO to biodiesel.
Used motor oil is what I had in mind. I'm not sure why it fasinates me so much, I guess it's the tinkerer in me that wants to mess with these things. It's the same thing with guns, dirtbikes, most anything mechanical, I can't leave it alone and want to learn all I can about it. I keep reminding myself that this truck is different, waited most of my adult life for a truck like this and don't want to mess it up but if I could tinker safely I'm all for it :D LCH

Does anyone who runs it think that waste oil should not be ran in the winter?



thanks everyone - this is a great debate!!!

Originally posted by LCH
No really you first LOL makes me think of thoes little chipmunks [laugh] no you first, no after you....LCH

I do recall those chipmunks.

You go first.

[laugh]

On the 05's, the dealer lists the exhaust part as a "resonator" rather then a cat.
As such, I assume it would be ok to remove it, and is this necessary to run waste oil? It does have the honeycomb in it like a cat, but will it clog up like one?

Howdy! New to the forum...
Just traded my 01 F250 PSD for a 04.5 CTD 2500 4X4!
I love the truck but miss the room!

I ran used waste oil in my PSD for about 30K miles at a 45% mix. No Loss of power or mileage. I mixed diesel and motor oil in a 55 gal drum and used a 12v pump to circulate it through a TP Bypass filter for a couple of hours and then through a regular fuel filter into my 60 Gal auxiliary fuel tank. I just started mixing different %'s until a got to 50% and noticed some smoke during acceleration (more than normal) and then backed off a notch.. Bam! 1/2 priced Fuel!
I just installed the tank in the Dodge and I am going to rig it up so that the stock fuel gauge will work when I switch over to the aux tank... Sweet Setup from Northern Tool >> But cost a bunch!

I love the Forum... Very informative and not as many poeple complaining about ther truck!! To Tell you the truth... That is the main Reason I Choose the Ram!

OilGuy
Hi,can any diesel engine run wmo in with the diesel fuel. or isthat just for american made diesel's .
Thanks

I do recall those chipmunks.

You go first.

[laugh]


Chip and Dale.

Does anyone who runs it think that waste oil should not be ran in the winter?




In the winter, depending on how rich you mix it, could cause a problem of thickening and might be hard to flow until it warmed up.

Just added my second batch. First one ran fine.

Dusty

I am pulling my 66 gallon slip tank and will put tubing inside it plumbed to a circulating heater off the engine coolant system. Its a 1500 Watt heater.
I am going to put a layer of Linex on the tank too. Then I will run regular pump diesel from the factory tank and the experimental fuels from the slip tank.

[coffee]

I am pulling my 66 gallon slip tank and will put tubing inside it plumbed to a circulating heater off the engine coolant system. Its a 1500 Watt heater.
I am going to put a layer of Linex on the tank too. Then I will run regular pump diesel from the factory tank and the experimental fuels from the slip tank.

[coffee]

Jeez Scotty, whats in that coffee [laugh]

Just put my 1st gallon of used oil in the tank after a fill up. Little scared of it, but from what everyone says....................?

Jeez Scotty, whats in that coffee [laugh]

A scientific blend. [whistle] [laugh]

With hurricane Rita bearing down on us we might be without fuel for awhile. I have little over one gallon of ND30w and plus over 5 gallons of used motor oil. If I have too I will use it.

MikeyB

I'm considering running waste oil in my old chevy with the 6.5td. I just have to figure a cheap way to filter it so I can give it a try.

I run a gallon per fill up.

I've ran over 1500 miles with both a 50/50 and 60/40 mix of Diesel/Waste Veggi oil, I would think that the trace sugar/salt/msg would be much less harmfull than the particulates from grinding pistons, silicon and other particulats that are in WO, unless you filter down to 1 micron. I have checked my filter at 300mi intervals, I have never seen my filter remain so clean, my mileage has been so far seen -1 mpg decrease, but given the fact that I'm saving over $40 per fillup, i'll take that 1 mpg loss. I'm filtering the wvo down below 5 micron, and combining with diesel and 16-20 oz of Diesel Power service. I have had no problems thus far with any kind of waxing, gelling, or clogging of my stock filter. My truck is much quieter and smells like eggrolls.

I ran a 30% mix of WO and noticed a 3mpg decrease on a tank of fuel... plus the truck just plain stank like a crapsickle!

WVO contains all kinds of residues that can damage your engine and can't be filtered out such as salt, sugar, msg, etc. Although some people run WVO without processing you mainly see it used on older diesels. If you are going to use WVO on an engine you want to keep for a long time you are much better off converting the WVO to biodiesel.

infidel. I truely respect your knowledge and appreicate your wisdom, however you are incorrect about this. Everything mentioned and more is easly filtered out of WVO. I have been doing so for over a year. Due to being "Off Topic" I'll not elabotate here.
Ken Gardner

Now, I saw a couple posts that said no if the truck has a kitty. But I've also seen several sig's with people running WMO with 04.5s and 05s. Now, does burning this just render the cat ineffective? Or does it clog it and ruin your day? Or can you burn some oils but not others? Help me out please.. If I can lube my fuel system, and recover $10 from what I spent on changing my oil, I'd be smiling!!

infidel. I truely respect your knowledge and appreicate your wisdom, however you are incorrect about this. Everything mentioned and more is easly filtered out of WVO. I have been doing so for over a year. Due to being "Off Topic" I'll not elabotate here.
Ken Gardner

I would like for you to elaborate. Could you PM me with the details?

I'm going to start running drain oil in mine. I wouldn't reccomend running it straight from the drain pan to the tank...there are lots of impurities in drain oil, such as tiny metal particles, that you could keep out of the truck's filters by doing a quick filtering first. Just stack up 2 or 3 paint filters and pour the oil through them. They aren't as fine as a true oil filter, but they will seperate the larger particles out.

Jim

I filtered mine through paper towels. That's after letting the bigger junk settle out for a couple months.

you guys are on the right track im running 25 % wo with furnace oil [coffee]
some poeple are scared of the fine but hey its 1000$ ive saved more than that the gov can kiss my but

Well it seems to run fine. Too bad it is a pain to keep the oil change pail clean. I have another 4 qts ready for next fill up. I am going to keep the oil change pail wrapped in a plastic garbage bag to keep it free from debris for next oil change.:cool:

Do you guys think the fuel filter will get plugged faster running old oil ?

It was oil change weekend....Accord, Truck, Tractor. Kinda funny how they all came due at once. Now I have a bunch of WMO on my hands pun intended:) . Anyway I have been burning the oil from the gassers but the Dang oil from the diesels is filthy black. You know the stuff it is permanently in the finger prints and driveway. I know some of you toss it in your tank but man this stuff is black, black, black. I am a bit concerned about dumping this stuff in my pride and joy. Should I pour it in and do you do it? I looked in the thread but didnt see anything about burning diesel WMO.

Dusty

dustyrock,

i dont see any reason for the oil being black a bad thing. it is oil. thats why its called " black diesel ".

if you have any douts about it, filter it through some paint strainers. about .40 cents from NAPA.

i run it in my "pride and joy" and think its a good deal. i am runing 10%. it runs a lil quieter, and at start up i use to get the black plum of smoke. i dont get any now! and i have picked up 2 mpg more. a lot of guys say nothing has changed. and yes i acounted for the oil in the tank when calculating it out.
i'll keep running it! plus at three gallans less a fill up, thats $7.80 less a tank.
x that by 4 times a month. $31.20 is 31.20. and i am trying to save as much around every corner with a baby on the way.

BOB

It was oil change weekend....Accord, Truck, Tractor. Kinda funny how they all came due at once. Now I have a bunch of WMO on my hands pun intended:) . Anyway I have been burning the oil from the gassers but the Dang oil from the diesels is filthy black. You know the stuff it is permanently in the finger prints and driveway. I know some of you toss it in your tank but man this stuff is black, black, black. I am a bit concerned about dumping this stuff in my pride and joy. Should I pour it in and do you do it? I looked in the thread but didnt see anything about burning diesel WMO.

Dusty

Yeah, dump it in straight from the pan, the fuel filter will filter it just fine. Cummins says 5% is ok, more than that is up to you. I have never seen a difference in the filter life either.

Every time I change my oil, I dump it straight into teh tank , then go fillup. I try to let teh tank get low before an oil change, so I think I have been pretty consistant at putting the oil from teh engine into about 26-28 gallons of diesel. Not sure what percentage that works out to exactly, about 10% ballpark figure.
I havent had any problems at all, kinda like the way it runs with it, I can sure tell a difference now when runnig a tank of straight diesel, much louder and she "clatters" more.

OK I am going to go ahead and dump it in, next fill up. I already have 5 qts of gasser oil in her now. I have 5 gallons of diesel WMO to use too. No more taking it to the disposal tank for somebody else to use. I am saving nearly $3 a gallon and she runs just fine with it.

Thanks for the help.

Dusty

Every time I change my oil, I dump it straight into teh tank , then go fillup. I try to let teh tank get low before an oil change, so I think I have been pretty consistant at putting the oil from teh engine into about 26-28 gallons of diesel. Not sure what percentage that works out to exactly, about 10% ballpark figure.
I havent had any problems at all, kinda like the way it runs with it, I can sure tell a difference now when runnig a tank of straight diesel, much louder and she "clatters" more.


Gawd... I gotta lern ta spel........ [eyecrazy]