Challenger SRT Hellcat
FYI the Pennzoil can be hard to find. Mobil 1 is always readily available and use to be the mainstay of all SRTs. Royal Purple is overrated, I think RS will even agree.I believe the factory uses a Pennzoil product, even has SRT on the bottle. Mobil is good also Royal Purple. My car has been sitting only 70 miles so far but I will check the oil soon thanks for the tip!