Just bought a used 07 Ram quad cab 4x4 with the hemi and big horn package. Has just over 30,000 miles and am pretty **** on things and want to do all the service on it myself. Can someone answer a few and verify what i am thinkin is correct? Been reading archives all morning...lol

Oil and filter....7 qts and will likely go to Mobil One syn 5-20 with the mopar filter

Front diff... 75-90 about 2.5 qts? Can I use the Mobil One 75-90 which is synthetic although stock id dino?

Rear diff... 75-140 Mobile One syn or RP 2.5 qts.... add LSD additive anyways even though oil says dont have too? I do have limited spin diff...

Trans.... for a pan drop and filter change....2 filters, a screw on one and flat one...probably use Valvoline or other name vrand ATF+4 I can get locally...about 7 qts

Transfer case....drain and refill with 2qts +/- of ATF+4


Sound about right? Thanks guys

 

That's about right. Although, if the bottle of diff fluid says it has fiction modifier then i wouldn't bother adding more...hint..hint...The "LT" bottles of Mobil 1 have friction modifier in the oil.
I would use synthetic up front.
I use Mobil 1 oil filter. It's better than the Mopar and it's made by Bosch and is specifically made for Synthetic fluids. The internals are a synthetic fiber rather than paper...i.e.Mopar...

 

Thanks dirtydog....Appreciate it!

 

This reminds me that I really need to change my front diff fluid!!

 

I agree 100% with what Dog said but I had to buy 9 quarts of tranny fluid when I did mine. And, like Dog said, Mobil1 or RP for the diff you do not have to add the LS additive.

 

I dunno what I was thinking here? But the Mobil 1 filter is made by Champion. The Mopar filter is very similar if not identical to the Purolator PureOne which does have synthetic media as well but flow is more restricted than the Mobil 1.


I guess in the end as long as you keep up with regular mainenance is prob doesn't make a whole lot of difference.

 

I can't find my front differential