Terrh
Member
- 147
- 9
- 18
- Location
- Detroit, MI
it actually really surprises me that engine oil is OK to use in that auto trans at all. Not many automatics would be OK with that, ATF is quite a lot thinner than 10W40.
I'd put some modern synthetic Dexron IV in there when you change the filters. You should always flush transmissions when changing fluids, but I think it is almost an absolute MUST if changing fluid types.
If you don't want to spend gigabucks on fluid doing it, I don't think there would be a problem with using the cheapest dexron IV you can find during the flush until you're satisfied you've got all the motor oil or whatever is in there is out.
There are a ton of methods to flush auto transmissions, easiest way for many transmissions is to unhook the cooler lines, one will blast fluid out and the other will suck fluid in, so you let it suck in fresh fluid while it pumps out the old stuff. Do this after changing the stuff in the pan once. Not 100% sure this method will work with this transmission, but it probably will.
disclaimer: I have very little experience with HD auto transmissions, mostly just light and medium duty stuff, YMMV and if anything I say sounds wrong it might be!
I'd put some modern synthetic Dexron IV in there when you change the filters. You should always flush transmissions when changing fluids, but I think it is almost an absolute MUST if changing fluid types.
If you don't want to spend gigabucks on fluid doing it, I don't think there would be a problem with using the cheapest dexron IV you can find during the flush until you're satisfied you've got all the motor oil or whatever is in there is out.
There are a ton of methods to flush auto transmissions, easiest way for many transmissions is to unhook the cooler lines, one will blast fluid out and the other will suck fluid in, so you let it suck in fresh fluid while it pumps out the old stuff. Do this after changing the stuff in the pan once. Not 100% sure this method will work with this transmission, but it probably will.
disclaimer: I have very little experience with HD auto transmissions, mostly just light and medium duty stuff, YMMV and if anything I say sounds wrong it might be!