Castrol® GTX® High Mileage 5W-20 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. Meets or exceeds the following specifications: API SP/SN PLUS/SN/SM, ILSAC GF-6, Meets Ford WSS-M2C945-B1, Meets Ford WSS-M2C960-A1
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