Originally Posted By: NHHEMI
I have run it since approx 1990. I have nothing but good to say about it. I have run the 5W-30 and 10W-30 99.9% of the time though. I ran one OC of 5W-20 in my 04 HEMI Ram but ended up selling it shortly after the OC. My 08 Ram calls for 5W-20 and I want to run the 5W-20 but have concerns about warranty issues as it does not have the right API certification( only API SL and I need SM/API Starburst ). That would be the only thing that would keep me from using it.
I also have run, in various vehicles, RP's MaxGear gear oils( 75W-90 and 75W-140 ), MaxATF tranny fluid, and their Purple Ice coolant additive. Basically if they have what I need for my vehicle I use it.
I have used it in Daily Drivers, Muscle Cars, and bracket racing drag vehicles with nothing but EXCELLENT results. IMO it would be an excellent choice for your vehicle.
Thank you very much, thats the kind of feedback I'm looking for. My only concern is like yours....the API SL instead of the SM rating. I put Ford's 100k mile extended warranty on this car and don't want any warranty issues down the road. I can't imagine that would ever happen since the 4.6 V-8 is pretty bulletproof and if this oil is as good as I think it is.