Formulated to meet the needs of both air and water-cooled 4-stroke engines, Comp 4 10W-30 XP is the recommended SAE grade for many motorcycle manufacturers."
"152839
Castrol POWER1 Racing 4T is designed for highperformance 4-stroke bikes to deliver optimumpower in all riding conditions. Suitable for all 4-stroke motorcycles, both carburetor and fuel injected where API SN or JASO...
Formulated to meet the needs of both air and water-cooled 4-stroke engines, Pro 4 10W-60 XP is recommended for larger capacity engines, hot conditions and in engines where excessive fuel dilution is encountered."...