PENN GRADE1 10W-40 Synthetic Blend High Performance Oil, 5-Quart — Anti-Wear & Thermal Protection

PENN GRADE1 10W-40 Synthetic Blend High Performance Oil (5 Qt) is a robust engine lubricant engineered to protect high-stress street and racing engines while reducing internal friction and maintaining film strength under extreme conditions.

This synthetic blend motor oil combines carefully selected PennGrade base stocks with advanced additives to meet the lubrication demands of high-performance gasoline engines. It is formulated to deliver thermal stability, anti-wear protection, and shear resistance so engine components like bearings, camshafts, pistons, and rings stay protected during heavy loads, high temperatures, and aggressive driving. The 5-quart container offers enough oil for most passenger vehicles and many performance applications, making oil changes straightforward and convenient.

How does this oil protect high-stress engine parts?

Advanced additive chemistry provides a tough lubricating film that resists breakdown under shock loads and high thermal stress. This helps reduce metal-to-metal contact and slow wear on critical moving parts across intense driving conditions.

• Strong anti-wear additives protect bearings, camshafts, and piston rings.
• High film strength maintains lubrication under elevated temperatures.
• Good anti-foaming properties preserve consistent oil flow.

Will PENN GRADE1 10W-40 improve engine performance?

By cutting internal friction and preserving a stable oil film, the oil can help engines run more efficiently and maintain power delivery, especially in high-rev and high-load scenarios. It’s designed to support horsepower retention without sacrificing component protection.

• Shear-stable formula keeps viscosity consistent under load.
• Friction-reducing base stocks help smoother mechanical movement.
• Thermal protection minimizes viscosity loss at high temperature.

Is this oil suited for both street driving and racing conditions?

The formulation targets the needs of both high-performance street cars and racing engines, offering a balance of protection and durability for varied driving styles. It’s optimized for engines that experience frequent heavy loads, elevated exhaust and combustion temperatures, and aggressive throttle use.

• Meets demands of high-stress, high-temperature operations.
• Reduces wear during rapid acceleration and sustained high RPMs.
• Appropriate for many performance-oriented gasoline engines.

How much oil is included and how is it packaged?

This product comes in a 5-quart container sized for easy handling and measured refills. The packaging is designed for convenient pouring and reduces mess during oil changes.

• 5-quart capacity for standard service intervals and top-offs.
• Pour-friendly container to simplify maintenance tasks.
• Clear labeling with product grade and viscosity (SAE 10W-40).

Who is this for: PENN GRADE1 10W-40 Synthetic Blend High Performance Oil is intended for owners and technicians of performance and street-driven gasoline engines who want a balance of thermal stability, anti-wear protection, and friction reduction. Choose this oil if your vehicle regularly faces heavy loads, spirited driving, or occasional track use and you need a dependable, shear-stable lubricant in a convenient 5-quart size.