Castrol Power 1 4T is motorcycle engine oil with HC synthesis and Power Sustain TechnologyTM.. The new Power Sustain TechnologyTM provides thermal stability, high wear protection and suitable friction values at the respective lubrication points to meet the requirements of 4-stroke motorcycle engines.. Features Trizone Technology™ for engine, clutch and gear protection. High lubrication reliability even in air-cooled engines subject to high thermal stress.. Reduced tendency to deposits during the entire oil change interval.. Reduces oil thickening due to increased oil temperatures..