I have a 3500 with an auto transmission. Is the factory fluid synthetic or dino? Thanks!

 

Assuming you have a late model truck you should have ATF 4 which is synthetic.

 

Hey, I posted on this yesterday. What happened to my post??????

 

I'll try again and see what happens.
Third generation trucks have ATF+4 which is suppose to be synthetic.
Wal-mart sells Mopar ATF+4 for $4.42 per quart.

 

Just figured out what happened, you posted the same post in 2 different forums. Oh well, I answered in both now.

 

Um - I'm not sure if the Mopar ATF+4 is actually a full synthetic. I thought I read on the label that it was made from synthetic stock or something like that. When I called the parts dept. at the local dealer I think they told me it was semi-synthetic.

I could be wrong though... Sheesh - this is the least helpful post I think I've ever posted.

 

More than likely if it is synthetic, it is made of group III base. This is technically dino oil. Amsoil and Redline are true synthetics. There are others I am sure, just two of the moe common types.

 

true synthetics run cooler and break down at higher temp than the fack synthetics.thats why i wanted to know if oem was true syn.

 

I do know the ATF+4 was designed to run at higher temps. I also know you can get that from additives so I guess we're back to square one.

 

They also sell their own house brand (Super Tech) ATF +4 for $2.97. When it first hit the shelves, it was $1.99. I bought a case. Now it's gone. Should have filled a shopping cart.

 

I think everyone had the same idea as you, the last couple times I've looked it wasn't in stock.

 

so bottom line seems to be no body knows if the fastory fluid is true syn.the dealer here said he had no way of finding out .i think he just wont take the time to find out .

 

want to stir the nest at the dealer , ask him for the MSDS on that tranny oil

 

My take and alot of other people's is the mopar ATF+4 is just plain hydro-cracked mineral based group III fluid with a good dose of additives. Have seen nothing to prove it's a group IV or V fluid.

 

baldhog what does msds mean. thanks