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."...
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