PennGrade 1® Synthetic Blend High Performance Oil SAE 10W-40 PennGrade1® Multi-Grade High Performance Oils are specially formulated using high quality PennGrade base stocks and select additive technologies to meet the stringent lubricating demands of high-performance, highly stressed, street and racing engines. PennGrade 1® Synthetic Blend High Performance Oils deliver excellent shock load and high temperature protection to heavily stressed engine parts including bearings, camshafts, rings, and pistons. They reduce internal friction for increased horsepower output while maintaining their strong lubricating film protection even under the most demanding torque and extreme temperature conditions. These high performance formulations also provide good anti-foaming and shear stability characteristics, excellent high temperature protection from thermal breakdown, outstanding film strength, and strong anti-wear properties. Please view all catalog listing details to make sure application is correct for your vehicle. If you have any questions , specially about the correct application for your vehicle, please send us an email and we will respond right away. FREE SHIPPING ANYWHERE WITHIN THE USA! RETURN POLICY All authorized merchandise MUST be returned in original packaging, unused and in excellent condition. No refunds or exchanges will be made for items over 14 calendar days from the date of receipt. Absolutely NO return or exchange on merchandise that shows signs of having been used, installed, or mounted. Original shipping and handling charges are not refundable in the case that the customer ordered the wrong part or application. All approved refunds will be paid through PayPal. Any products returned without a Return Authorization Number will be refused and no credit will be given.
