100% synthetic 4-Stroke lubricant – Ester Technology – Meets bike manufacturer specifications. Excellent shear resistance protecting engine and gearbox. Smooth shifting. Meets JASO MA2 specifications for optimal wet clutch performance. Suitable for catalytic converters. Suitable for specific SUZUKI, YAMAHA, KAWASAKI engines requiring SAE 10W-40 viscosity grade oil. Warning: This product can expose you to chemicals which is [are] known to the State of California to cause cancer and birth defects or other reproductive harm.