Just completed my 1st oil change on RHO at 1206 miles…why?
This engine is very similar in output & configuration to the current BMW M3/4 Competition. BMW recommends that engine & all differential fluids be changed at 1200 miles. They are so serious about it, BMW even pays for this $2400 service.
Our differentials are not limited slip, so I’m just going to follow the “severe duty” recommendation of checking/changing the fluid at 30K miles, though I will probably confirm the front diff is full at some point in the near future (many came 1/2 quart low in TRX).
Transfer case is another story. Since there are clutches & slip (heat), that one is getting fluid changed out at 2500 miles.
For the oil filter removal, I used a 74/76mm 15 flute cap. The drain bolt is 13mm. I drained approximately 7 3/8 quarts total from the engine & filter. Guessing the additional 1/8 quart is in the filter media. The MOPAR filter part# is 68566307AB, and I got .4 quarts into it before install. Oil is factory spec Penzoil for SRT 0W-40.
Easy peasy. No need to remove any skid plates or jack it up. Though, a 6” socket wrench extension is highly recommended (by me).
I don’t have any torque specs for the drain plug or filter…did them by feel, as I’ve done for many vehicles over the years. The oil filter does have a pictorial on the side that appears to indicate it should be hand tightened + one turn. Maybe my hands are too strong (ha!), but 1/4 turn with the wrench after hand tight felt PLENTY snug!
