Wal-Marts in north Alabama are now carrying Royal Purple synthetic oil. I've always thought I did well for my vehicles by using Castrol synthetic, Mobil 1, and Pennzoil Platinum (depending on availability and price). The RP oil is still quite a bit more expensive than Mobil 1 or PP at WM.
Is Royal Purple better than these more common synthetics? Should I step up? You fellows who have studied all this longer than I please educate me.
Is Royal Purple better than these more common synthetics? Should I step up? You fellows who have studied all this longer than I please educate me.