I wouldn't be advertising that practice especially if you live in the great socialist republic of california

 

sdaly,

What are you using to make sure there is no metal in the oil that could cause injector problems? I can't see a T-shirt doing a very good job of filtering out very much of anything.

 

Just the t-shirt, and gravity. I tried a coffee filter and it was really slow. I let the oil sit and settle out, then make sure not to siphon off the bottom. Really what I'm most concerned about is any debris that falls in the oil drain pan from the bottom of the vehicle during the oil change. Beyond that, it's up to the truck's fuel filter to do its job. If I can find any additional filtering method that's cheap/free and not too invonvenient I might consider it, but I'm not too worried otherwise.

 

If your using the stock 10 micron filter then any thing smaller then 10 microns will get by it and in to the pump and injectors. I wish you luck.

 

I'm going to try this on my 07 but with fresh 15-40. First time will be 10 gallons of diesel and 5 gallons of oil.

 

That might be a little too much oil...


off topic: WS6 = Trans AM Did I get that right!

 

Thanks, I appreciate it. I've been working on engines and rebuilding them the better part of my life, and I'll tell you that anyone who believes that the inside of an engine is a sterile enviornment, free of debris, would be mistaken. You'd be surprised what passes through your engine on a regular basis without you realizing it. Any debris in the oil large enough to take out an injector or pump would already have spun a journal bearing or scored a valve sleeve, blown a seal, etc. There are other things I'd concern myself with before <10µ debris in the oil, such as the additional pressure the higher-viscosity oil may create in the pump/HPCR system (which is why I am keeping the oil mix fairly low), or worrying about debris getting in your fuel filter housing when changing the filter. An errant grain of sand that gets past your fuel filter is far more dangerous as it could take out a valve seat, score a cylinder, damage a ring, or destroy your turbo. <10µ debris is the least of your worries. You probably get more debris each time you open your fuel filler cap and put that dirty diesel pump in.

 

WS6 does equal trans am.

I use paint strainers that I get at work at NAPA. I just set one in a funnel for coolant and run the used oil into a 5 gallon bucket. I have had no problems. Went from 19.5 mpg to 21.5 mpg, not included in the free oil in place of $4.50 diesel fuel. If I factor this in, I am about 24-25 mpg depending on how much I run. (Usually 2-3 gallons per 20 gallons fuel)

 

WS6 is the forced air induction T/A. Standard is firebird, next is T/A, the WS6 T/A, and then the Firehawk.

 

Are you sure?? I had a friend with a 79 WS6 and an 84 WS6 neither had FAI.

 

I'll have to look into it, was based on the modern Firebird and the option packages. You could get a T/A without FAI, the WS6 gave you the FAI.

 

Question: I suppose you still have warranty on the truck. You can probably kiss that goodbye if something happens while your running it and you take it to the dealer. I am curious to know if it works but would be scared on a newer truck with warranty. Just my .02

 

I was in a bind one day in my service truck (15k lbs + f550 drinks fuel) I had 5 gallons of diesel and 5 gallons of 15-40 in the back. I put both in the tank and noticed no difference in performance. If the oil is clean and the engine performance is not effected in any way how would there be any long term damage in running oil through the fuel system?

 

im glad some of you guys were not around when engines were first invented, because if nobody was willing to take a risk think where would we be today

 

Used oil is safe long as it is clean. Cummins has a system on the big rigs that takes used oil from the block cleans it and sends it to the fuel tank and atomaticaly adds new oil from a resivoir.
https://quickserve.cummins.com/info/.../centinel.html