Its Power Release Formula is specially designed to enable your bike to deliver maximum and sustained power right up to very high operating rpm thus offering a significant advantage over conventional motorcycle engine oils.
Castrol Power 1 GPS's Power Release Formula reduces internal losses in the engine, whilst retaining optimum wet clutch performance to ensure the efficient transfer of power to the rear wheel. Castrol GPS has been designed specifically for motorcycles, and incorporates Trizone Technology™ for the combined protection of the engine, clutch and gears.
Castrol Power 1 GPS 4T 10W-40 is suitable for all modern motorcycle engines where API and or JASO specifications are recommended.
SAE 10W-40 - API SJ - JASO MA