Or Amsoil or the like?
I use RP and it really does keep the engine a little cooler and it revs a little more freely. I also go 10K between oil changes, but still change just the filter and top it off every 3-4K.
I never bought into the "every 3000 miles" crap that the evil oil industry tried to trick us into. If it didn't get so hot in the desert, I'd probably change the purple out very 12K or so.
I'm actually starting to burn a little oil now at 72K, but not much.
I use RP and it really does keep the engine a little cooler and it revs a little more freely. I also go 10K between oil changes, but still change just the filter and top it off every 3-4K.
I never bought into the "every 3000 miles" crap that the evil oil industry tried to trick us into. If it didn't get so hot in the desert, I'd probably change the purple out very 12K or so.
I'm actually starting to burn a little oil now at 72K, but not much.