Performance Plus
Representative Photo, actual item may vary
Performance Plus 644-55 Premium Plus 15W-40 CK-4 Heavy Duty Diesel Engine Oil
Representative Photo, actual item may vary
Performance Plus®: Lubricants Engineered for Extreme Performance
Performance Plus® is a premium brand of automotive and industrial oils and lubricants developed by Kleen Performance Products, a Safety-Kleen company. With more than 30 years of research, innovation, and testing behind every formulation, Performance Plus has earned a reputation as a trusted name for drivers, fleet operators, and motorsport professionals who demand the absolute best from their engine protection products.
What sets Performance Plus apart is its commitment to real-world, extreme-condition validation. These lubricants have been proven in some of the most demanding environments imaginable — from U.S. military combat vehicles to race car engines competing at Daytona Motor Speedway, Indianapolis, and the Bonneville Salt Flats. That heritage of toughness translates directly into everyday protection for passenger cars, light trucks, and heavy-duty equipment alike.
The brand’s connection to motorsport runs deep. Performance Plus has served as the official oil partner of NASCAR teams including Roush Fenway Racing, and the brand’s relationship with racing legend Richard Petty stretches back decades. The Richard Petty Signature Series™ motor oil — used in every car at Petty’s Garage — represents the pinnacle of the Performance Plus lineup, formulated to deliver outstanding engine protection under the most uncompromising performance demands.
At the core of many Performance Plus products is the proprietary KLEEN+ base oil — a superior Group II+ base oil that is both high-performing and sustainably sourced from re-refined stocks. This unique combination of quality and environmental responsibility distinguishes Performance Plus from conventional lubricant brands.
The product range spans engine oils and gear oils designed to meet or exceed the toughest North American standards, including API, ILSAC, and SAE specifications. Methodical testing and rigorous process controls ensure batch-to-batch consistency, giving customers confidence in every pour. Whether you’re protecting a high-revving performance engine or safeguarding a heavy-duty drivetrain, Performance Plus offers a fluid for the job.
Performance Plus Product Categories
- Engine Oil — Conventional, synthetic blend, and full synthetic motor oils formulated with premium base oils and advanced additive packages to meet or exceed API, ILSAC, and SAE requirements.
- Gear Oil — High-performance conventional and full synthetic gear oils engineered with superior Group II+ base oils to protect differentials, manual transmissions, and driveline components under severe operating conditions.