Castrol Power 1 Racing 4T 10W-40 Engine Oil. Castrol Power 1 Racing 4T with Race Derived Technology™ is proven to stay strong and deliver acceleration in race track conditions. It resists thickening at high temperatures, maintaining oil viscosity to ensure maximum engine performance. It has been tested under harsh racing conditions for over 40,000 km, where it maintained 94% of the initial maximum test power produced by the engine, delivering racing performance without sacrificing engine protection.
Fully Synthetic. Specification: API SN; JASO MA-2. 1L Bottle.