Castrol GTX High Mileage 10W-40 is the #1 consumer high-mileage brand, specially formulated for vehicles with over 75,000 miles. It's a synthetic blend motor oil that helps extend engine life providing Superior Protection in 7 Critical Areas including corrosion prevention, sludge control, timing and friction wear. It also contains a proprietary additive to protect the emisssion system. Our Phosphorus Replacement Technology reduces harmful phosphorus to protect the catalytic converter and help extend the life of your high mileage vehicle. Meets or exceeds the following specifications: API SP/SN PLUS/SN/SM.
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
