ULTIMATE 4-STROKE PERFORMANCE – U1P 10W-40 full synthetic motorcycle oil exceeds API SN and JASO MA2 standards, delivering top-tier protection and maximum engine output for motorcycles, ATVs, and powersports engines. CLUTCH & GEARBOX OPTIMIZATION – Certified for JASO MA2 to ensure smooth, reliable clutch engagement and precise shifting at all RPMs. Ideal for wet clutch systems in high-performance bikes. RACE-TESTED ENGINE DURABILITY – U1P 10W40 Motorcycle Oil formulated with high-shear stability and anti-wear agents to extend engine, clutch, and gearbox life—even in extreme temperature or high-RPM conditions. ADVANCED THERMAL & OXIDATION STABILITY – Withstands high engine heat and resists sludge and varnish buildup, keeping your engine running smooth while improving fuel efficiency and throttle response. VERSATILE COMPATIBILITY – Designed for 4-stroke motorcycles and ATVs with or without catalytic converters. Reliable operation across street, off-road, and high-performance riding conditions. Ultra1Plus SAE 10W-40 Full Synthetic 4T Engine Oil, API SN, JASO MA2 is full synthetic, super high-performance, multi-grade lubricants for use in high-RPM, 4-stroke motorcycle engines with integral gear boxes and wet clutches as well as for use in any application requiring a four-stroke engine oil meeting the requirements of JASO MA2, JASO MA or API SN.

Blended with 100% synthetic base-stocks and premium performance additives, Ultra1Plus Full Synthetic Engine Oils 4T (Four-Stroke) provide excellent protection during rapid RPM increase. Specialty friction modifiers provide for smooth clutch and gear shift operation while specialty anti-oxidants and sophisticated dispersant technology provide enhanced cleanliness.

Ultra1Plus Full Synthetic Engine Oils 4T (Four-Stroke) are highly shear stable therefore eliminating viscosity breakdown. These products are full synthetic multi-grade engine oils suitable for use in all seasons