Castrol GTX 5W-30 Conventional Motor Oil, 5.1 Qt., 311577

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 5W-30 High Mileage Synthetic Blend Motor Oil 1 Quart

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

GTX Ultraclean 5W-30 Synthetic Blend Motor Oil, 5 Quart

CASTROL GTX Ultraclean 5W-30 Synthetic Blend Motor Oil, 5 Quart

Castrol GTX SAE 5W-30 Motor Oil - 1 Quart - Castrol

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

Castrol GTX Ultraclean 5W-30 Synthetic Blend Motor Oil, 1 Quart, Pack of 6 : Everything Else

Superior wear protection on critical engine parts 6X better wear protection than industry standards, as measured in the latest Sequence IVA test

Castrol GTX Full Synthetic 5W-30 Motor Oil, 5 Quarts

Castrol Gtx High Mileage 5W-30 Synthetic Blend Motor Oil, 1 Quart, (Pack of 6) : Automotive

5W-30 Edge & GTX Engine Oil

The modern world creates difficult challenges for engines. Poor fuel quality, heat and, tough driving conditions can all lead to sludge that potentially shortens engine life. Sludge is a sticky deposit that builds up in an engine's oil-ways and it can prevent the oil from protecting the engine. Castrol GTX ULTRACLEAN - with its proprietary sludge buster - is our cleanest GTX ever.