Gurkha ... why are you ignoring the fact that the trans is spec'd for ATF, why don't you just use ATF that the manufacturer recommends ??
P.B.
P.B.
Using engine oil in tranny
- Thread starter Gurkha
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Papa Bear,
I have been using ATF as per company recommendations, the point is the summer is getting extended here thanks to global warming, ATF is too thin to have the shear strength necessary to cope with extended running on and off road in summers, MB has changed its tune many a times on ZF transmissions, sometimes ATF, sometimes engine oil, in fact the ATF spec comes from Germany where average temps and summers are much lower and shorter respectively, in lieu of that, it has got me thinking on how I can protect the gears and also not damage syncs, most would put gear oil and that I am sure would damage my syncs even though it would protect gear well, best would have been a synthetic ATF, at current, thats a huge luxury, I change at 10K miles, so for me, its either mineral based ATF or HDEO with better shear protection. Even MB forums are divided over this, they recommend ATF for cooler weather and Redline MTL for warmer, if I had access to Redline MTL, would be my choice number one.
I have been using ATF as per company recommendations, the point is the summer is getting extended here thanks to global warming, ATF is too thin to have the shear strength necessary to cope with extended running on and off road in summers, MB has changed its tune many a times on ZF transmissions, sometimes ATF, sometimes engine oil, in fact the ATF spec comes from Germany where average temps and summers are much lower and shorter respectively, in lieu of that, it has got me thinking on how I can protect the gears and also not damage syncs, most would put gear oil and that I am sure would damage my syncs even though it would protect gear well, best would have been a synthetic ATF, at current, thats a huge luxury, I change at 10K miles, so for me, its either mineral based ATF or HDEO with better shear protection. Even MB forums are divided over this, they recommend ATF for cooler weather and Redline MTL for warmer, if I had access to Redline MTL, would be my choice number one.
Well folks, an update, decided to put Delo 400, with an intention if anything goes wrong, will get rid of it ASAP, kinda hard to do with M-I at US$15 a liter. So far so good, Delo 400 has smoothened the shifter considerably, even notchy second gear and recalcitrant reverse is like butter, even upshifts are a breeze at any speed. The uninsulated floorboard is far more cooler, which means cooler running transmission, have done around 550Km today so will know after few thousand and post the final verdict.
Wrong friction characteristics and other additives in package not optimized for an automatic. Viscosity too thick unless possibly 5W-20 engine oil. I've heard of people using engine oil for this reason or that, and even swear by it, but not for me. I guess if I was stranded somewhere and extremely low on transmission fluid due to an unexpected leak, and the only thing in the trunk was some 10w30, I would possibly go for it just to get home...
Yes, you can use engine oils in some transmissions. Some automatic transmission manufacturers even spec engine oil like Allison. There is thread just down from this about using engine oil in an AT542. Caterpillar allows engine oil in some of their automatics. Twin Disc marine gears also use engine oil in many cases as do ZF marine gears. If your transmission works well on ATF then you probably want to continue running ATF, however if you are having problems engine oil might work, or some blend there of.
If you can buy an MB why can't you pay $15 for M1 ATF and protect what you bought? High temps - you should be using syn ATF since those are the tough applications where its worth what you pay.
You want to use dino car oil in your MT trannie- buy trade for a Honda.
You want to use dino car oil in your MT trannie- buy trade for a Honda.
I would never use engine oil in a auto transmission, there I would stick to ATF no matter what but in termns of manual transmission, the only factor is the needle bearings and soft metal syncs which can be damaged, engine oil not being EP does that job well, consider in motorcycles, engine and transmission shares the same oil and engine oil does a swell job there.
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