Hey guys. Been lurking for a while and finally signed up. I have a preowed 2018 Ram 3500 with the as69rc Transmission. 80k miles and I don't know the service history so I'm going to knock out a transmission fluid change. I have scoured the internet and it seems this has been a debate going on for a few years about the magical properties of a $60 gallon of Transmission fluid.
A couple of weeks ago I did change on the transfer case and just used a Valvoline ATF+4 full synthetic. Looking at the data sheets Valvoline Maxlife ATF lists as68rc and as 69rc transmissions for use. Yesterday, I called Valvoline and the rep who answered also confirmed. Called Castrol as well and their rep said their transmax full synthetic is is good to use but not certified. I didn't ask if Valvoline was "certified" or not.
Its crazy for me to think that the Maxlife wouldn't work just fine.
A couple of weeks ago I did change on the transfer case and just used a Valvoline ATF+4 full synthetic. Looking at the data sheets Valvoline Maxlife ATF lists as68rc and as 69rc transmissions for use. Yesterday, I called Valvoline and the rep who answered also confirmed. Called Castrol as well and their rep said their transmax full synthetic is is good to use but not certified. I didn't ask if Valvoline was "certified" or not.
Its crazy for me to think that the Maxlife wouldn't work just fine.