Royal Purple High Performance SAE 40 Straight-Grade Synthetic Motor Oil - 1 Quart (Select 1985-2005 Honda, Isuzu, Kia, Porsche, Subaru)

Fits select 1985-2005 Honda, Isuzu, Kia, Porsche, and Subaru models.

Royal Purple High Performance SAE 40 straight-grade synthetic motor oil is engineered to meet the demands of high-load engines, including modern gasoline direct injection (GDI) platforms and classic performance applications. Formulated with advanced additive technology, this lubricant provides a superior protective barrier against metal-to-metal contact and addresses the specific threat of low-speed pre-ignition (LSPI) in forced-induction and high-compression engines.

By maintaining consistent viscosity and film strength across a wide temperature range, Royal Purple helps optimize fuel economy while minimizing wear on critical internal components like camshafts and bearings. This high-performance synthetic oil is an ideal choice for enthusiasts seeking long-term reliability and peak efficiency for their 1985-2005 select vehicle models.

• Advanced additive technology specifically designed to prevent LSPI damage
• Optimized for GDI and high-load engine environments
• Superior film strength for enhanced wear protection
• Maintains engine cleanliness and fuel efficiency
• Straight-grade SAE 40 viscosity
• Volume: 1 Quart