HARDDRIVE FULL SYNTHETIC ENGINE OIL 20W-50 1GAL parts and we know a bunch

and we know a bunch of high-performance street riders who do

Harley-Davidson FXR2 84-99 Fitment Specs: Type: Kit

Position: RearHarley-Davidson FLHR Road King 04-07 Fitment Specs: Mfg/N: FA400

Harley-Davidson FXRP 84-21 Fitment Specs: Type: Kit

HARDDRIVE FULL SYNTHETIC ENGINE OIL 20W-50 1GAL parts and we know a bunchFeatures: Produced using ultra high grade full synthetic base oil Minimizes oxidation and premature breakdown Offers ZDDP (Zinc Dialkyl Dithiophosphate) to provide premium wear protection Engineered specifically as a "multi fill" lubricant for Harley Davidson engines, transmissions and primaries Meets or exceeds all Harley Davidson warranty criteria Meets or exceeds API CI 4 SL (and earlier, such as SG and SJ) service rating and JASO MA2 standards 1