burning trans oil

[big red 211]

I'm burning used tranmission oil in my 01 7.3 and it worked fine during the summer but I'm having major problems getting it started this winter even with plugging it in. I saw that the biodiesel guys use methanol, would methanol work the same if it was mixed with trans oil?

[forddieseldoctor]

I'm no expert on burning straight trans fluid, but you may want to try running a 50/50 mix with #1 diesel. I mix a gallon in every now and then.

[86lxnotch]

ive been running up to a 50/50 mix with no issues starting. honestly i think it might start a little better with the mix than straight #2

[erbilabuc]

wow............
.

[Dietoremain]

well i dont think your injectors like you very much running straight trans fluid... my bud poured a bunch in his dmax and found that out... definitely mix 50/50 think about it, does it have as much combustible-ness(made that word up lol) as diesel?? not likely..

[vegginpsd]

How is said ATF being filtered?

Sorry, had to ask.

Put a quart of ATF in the freezer, and a jar of D2. Check viscosity after 12 hours in the chill..........at what ambient temp are you asking the fuel system to handle the ATF?

Is it that the PUMP cant handle it, or is the filter all shizzy from contaminates, causing a flow situation?

Yes, D2 will thin the ATF, but dont get me started on the whole ATF/WMO idea. Two tanks, heated CF'd oil would solve the problem.

[forddieseldoctor]

What's the recommended filter if you are going to run trans fluid?

[vegginpsd]

Originally Posted by forddieseldoctor

What's the recommended filter if you are going to run trans fluid?

I would never put any waste petroleum products in my engine. If I were so enclined to mess with it, I would insist on synthetic free ATF, centrifuged very slowly (4 gpm) at 180 degrees. At that point I would fill my truck with pump diesel and take it the trans fluid to the recycling center.....and give it to them.

Just my opinion, I could be wrong.


If you are not processing the ATF at all before you pump it into your tank, god help ya. You will need it.

[forddieseldoctor]

I've tinkered with it, but I just pumped it through a fuel filter for a gas motor.

[simone0414]

I'm not a fan of using anything but VO or D2 but I have no documentation to back up my feelings about it.

Has there been any work done to prove or disprove that Tranny fluid, WMO or any other fluids that guys are using is bad for your engine? Some are defintely bad for the environment.

Just wondering if most are going on assumptions or personal feeling or on documented facts?

I agree with Vegginpsd. Whatever fluid it is it must be properly filtered & made sure no water is in it. Don't know if you can do a HPT on WMO though. lol