Looking over the Chrysler specs for things like tranny oil and diff lube I see these goofy numbers and stuff. That's great, if I want to buy the stuff from them, but what does it translate to if I want to get it from my local auto parts store? There's warnings about using the right stuff, especially in the tranny, but how do you know what is right? I have yet to see a bottle of tranny oil marked "ATF +4" from any manufacturer. And where do you get those little bottles of "friction modifier" that the no-slip diff I have requires? Does that stuff mix with synthetic gear lube?

 

My local AutoZone, Advance, and Walmart all carry ATF+4. Don't worry about getting the cheaper fluids(such as SuperTech, Advance, or Coastal), they are all the same thing. The Friction Modifier should be where the gear oils are.

 

Atf +4 is synthetic. personal i run royal purple in my diffs, and engine. tranny i use amsoil syntheitic. i have had good luck with this combo on all of my vehicals

 

Advance auto and coastal are the same. castal makes advance auto atf+4

 

They ALL ARE THE SAME!! So buy the cheapest ATF+4 you can find!

http://www.centerforqa.com/licensedatf4brands.html

 

All transmission fluid is synthetic...

But I have heard good stuff about all amsoil and royal purple products.

 

dexron/mercon and ford type F are not synthetic.
all ATF+4 is synthetic.

 

Interesting. I don't see Amsoil on that list.

 

That is because Amsoil is different.....In a good way. Amsoil excedes the requirements of ATF+4. The reason they cannot be on that list is because Amsoil is a different blend. I have never heard ANY bad thing about using Amsoil in your transmission. I have only heard the best.

 

just because it is a liscensed atf+4 why does that make them all the same?......i mean not all 5w-30 motor oil is the same