Are there any problems using RP Max ATF in the auto 42RLE? I found some posts saying some people had problems not shifting properly after using RP. Thinking of using RP Max ATF in my auto trans and transfer case. I called RP and they say it's compatible with the ATF+4 Any input anyone?

 

I'm interested also in this or any other brand of synthetic trans fluid.

 

I wouldn't use anything that didn't say ATF+4 on the bottle.
There is no need to migrate away from what is supposed to be in there.
If RP is compatible with ATF+4, then why not put it on the bottle?

ATF+4 story:
h**p://www.allpar.com/mopar/transmissions/fluids.html

Licensed ATF+4® Brand Names

Advance Auto Parts ATF+4®
Carquest ATF+4®
Castrol ATF+4®
Chevron ATF+4®
Citgo Transgard ATF+4®
Coastal ATF+4®
Conklin ATF-Xtra Plus ATF+4®
Formula Shell ATF+4®
Great Wall ATF+4®
Havoline ATF+4®

MAG 1 ATF+4®
Mobil ATF+4®

Mobil Super ATF+4®

Mopar ATF+4®
MotoMaster ATF+4®
NAPA ATF+4®
Northland ATF+4®
O’Reilly ATF+4®
Parts Master ATF+4®

Parts Plus ATF+4®


Pennzoil ATF+4®
Petro-Canada ATF+4®
Quaker State ATF+4®
Ravenol ATF+4®
Sinopec ATF+4®
Super Tech ATF+4®
Texamatic DC ATF+4®
Ultramax ATF+4®
Valvoline ATF+4®

 

Great link. Thanks for the info.

Flash

 

So nobody used Royal Purple Max ATF in their auto trans successfully?

 

If someone posted they used it successfully, would you consider using it?

 

As already indicated, Mopar ATF+4 is already synthetic and, warrantee wise, a “perfect” oil for your transmission.

Here’s a link where the Dealer thought Royal Purple was used in a tyranny that puked. Do you want to go through that hassle?

I was at the Dealer today and picked some up for $5.35 a quart.

 

Ok, thanks guys. Mopar ATF+4 it is! Thanks.

 

Mopar ATF+4 is synthetic and is supplied by valvoline and is the same as valvoline atf+4 which is synthetic. Why spend more for the RP? I replaced my tranny fluid at 38k and it still looked good.

 

Yes.

See post 3 above for a complete list of licensed and tested brands.