Ok so diesel prices have gotten up too 3.65 here in NC and its killin me. I have heard of alot of people mixing filtered trans fluid or motor oil with their diesel and what im wanting to do is try to run 10 gallons of filtered used motor oil with 15 gallons of diesel.

Does this sound like a good idea? Some people say it cuts down on the longevity of the engine.

and it will lube the heck outta my pump

Oh and it will knock my price down to 2.19 per gallon for a full tank

 

Here we go again !! Lots of ayes and nays on this one, but I'm in favor of using up all the clean WMO I produce with my small "fleet". My recipe is to settle the WMO whatever weeks or months before I prep a batch of fuel additive, then mix up a mixture is various proportions, but typically about 75% WMO decanted into my mix, leaving at least 10% "bottom" to be discarded; about 10% 2cycle oil, 10% ATF and 5% diesel fuel additive (cheapest one available). I put about two gallons into the truck prior to a big fuel-up, less with a fuel top-up so I'd be burning around 15% WMO. I mix a few jerricans full before I head out for a long tow with my 5th wh camper to a) reduce fuel cost, b) lube the IP and c) add a bit of power. I've never noticed any additional smoke and my fuel filters are into their 4th year of service, or about 40k miles, ...

 

How do you filter your oil, and remove contaminants from it, prior to sticking it in your tank?


T.

 

Just set up a pump and a couple filters. Kinda like a water seperator in an air compressor line.

 

ppiggppenn mentioned that he allowed the oil to settle, and that's what I did when I burned WMO in my 1992. Allowing the crud to settle out works just as well as filtering, providing:

1. You have the time to let it work
2. You don't pour the entire container in your tank.

For #2 it's important to realize that the bottom 1/4 or so of the container will have most of the soot and other crud in it.

Burning oil works better at higher operating temps, like when pulling a load. If running empty when using a high concentration of WMO, it's possible to coke up the injectors. What that concentration is, I have no idea, and it's probably different for different people, depending on things like ambient temp, elevation, etc.

A 5% blend is generally considered safe under most any circumstances.

 

I never heard of it cooking injectors, why does that happen?

 

I just started doing this. I'm filtering the oil by hand, first through an automotive paint filter, then through a coffee filter. It's slow and takes a good week to filter a gallon, off and on as I remember. I've started with 1 gallon of WMO to a 15-18 gallon fill up, but will probably be going to 2 gallons soon with the rise in fuel costs.

 

I think Crossys son was the one who said he was mixing 10 gallons of WMO to every full tank. I would like to do something like that.

 

He said "coke" up the injectors, which I'll assume that means to gum them up, ( in simple terms that is )

If I'm correct, Coking the injectors is where the fuel deposits on them forming a layer of crud on the tip of the injector, potentially clogging the orifice.

 

Oh my fault, that makes a whole lot more sense. i guess running some fuel additive through it every couple of tanks would do the trick.

 

Anybody else got some thoughts on this?

 

If I remember correctly there was a guy on here that got a pretty hefty fine for running WMO in his tank. I think he got randomly stopped by DMV enforcement and they dipped his tank and said that because he had untaxed oil in his tank it was illegal and he got fined like $1,000 or something, I can't remember exactly. I mean, your chances of that happening are pretty slim, but it did happen. I can't remember who it was, maybe someone who has a better recollection than me will chime in.

 

Rickcher, I find that tough to believe. Stranger things have happened, certainly, but you have to consider how they would detect it. For one thing, a gallon or two of WMO in 35 gallons of diesel is nothing you could tell by eyeballing it. Also, they tend to look for red dye because that's simple and readily apparent (at least from what I've read--we don't have this nonsense here in Alaska).

 

DMV has a small lab with them and can do some tests on the spot.

 

I PM'd Brandon before I decided to start doing this. He says they usually mix 4-5 gallons per tank. And all he does to filter is run it through the automotive paint filter.