Newest API rating of SL for catalytic converters. Meets the flowwing standards: API SL/SH/SG and JASO MA. Recommended for all Triumph Motorcycles. Ester Technology to improve engine response. Proprietary Extreme pressure formula to protect the gearbox. Low sulfur and phosphorus formula for bike fitted with catalytic converters. Combine with K&N oil filter for the perfect oil change. Comes in one gallon, which is all that is needed for a oil change.