Castrol GTX High Mileage 5W-30 Synthetic Blend Motor Oil, 5 Quarts

Phosphorus Replacement Technology to help extend the life of the emission system Superior dispersancy that fights sludge build up Exceptional oil

1.4X superior sludge protection compared to tough industry standards, as measured in the Sequence VH Sludge test vs. API SP test limits Advanced

Castrol GTX Ultraclean 5W-30 Synthetic Blend Motor Oil, 5 Quarts

Castrol GTX Ultraclean 5W-30 Synthetic Blend Motor Oil, 5 Quarts, Pack of 3

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In Hand Review of Castrol GTX High Mileage 5W-30 Synthetic Blend Motor Oil

CASTROL GTX Ultraclean 5W-30 Synthetic Blend Motor Oil, 5 Quart in the Motor Oil & Additives department at

Castrol 03100 GTX High Mileage 5W-20 Synthetic Blend Motor Oil

Castrol GTX High Mileage 5W-20 Synthetic Blend Motor Oil, 5 Quarts for Sale in Lebanon, OR - OfferUp

CASTROL EDGE High Mileage 5W-30 Advanced Full Synthetic Motor Oil, 5 Quarts in the Motor Oil & Additives department at

Castrol GTX High Mileage motor oil is the leading consumer high-mileage brand. It's a synthetic blend motor oil that helps extend the life of your engine by protecting against sludge, wear and burn-off. Castrol GTX High Mileage is also engineered to protect your emission system. One of the leading causes of 'check engine' lights coming on in high mileage cars is catalytic converter failure, which can be caused by phosphorous in engine oil.

Castrol GTX High Mileage Motor Oil, SAE 5W-30 - 1 qt

Castrol GTX High Mileage 5W-30 Synthetic Blend Motor Oil: 5 Quart 15980E - Advance Auto Parts

As vehicles age, they change and some of these changes can result in costly repairs or replacement. Catalytic converter failure is one of the most common - and costliest - problems faced by higher mileage vehicles. The phosphorus in all motor oil anti-wear packages is also an industry recognized catalyst poison.