GTX High Mileage 10W-40 Synthetic Blend Motor Oil, 5 Quarts

Castrol® GTX® High Mileage 10W-40 is the #1 consumer high-mileage brand of motor oil. It's a synthetic blend engine oil that helps extend the life of engines by protecting against sludge, wear and burn-off. Engineered with Phosphorous Replacement Technology, it also protects emission systems by replacing some of the phosphorous that can damage catalytic converters.

• Phosphorus Replacement Technology helps extend emission system life
• Superior dispersancy that fights sludge build up
• Exceptional oil burn-off protection exceeding industry standards*
• Seal conditioners to help reduce leaks
• Advanced additives that minimize engine wear
• Improved fuel economy**
• * Based on API and ACEA volatility specifications
• ** In 5W-20, 5W-30 and 10W-30 grades versus industry specifications
• Meets or exceeds the following specifications:
• API SP/SN PLUS/SN/SM