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Castrol® GTX® Ultraclean is a synthetic blend engine oil available in 5W-30 and 5W-20 grades. The double-action formula has been proven to clean away the sludge that can block engine oilways and helps prevent new sludge formation thanks to its synthetic technology. Provides advanced protection against viscosity and thermal breakdown. The premium-quality base oils and anti-wear additives help extend the life of your engine. This motor oil gives superior protection against high-temperature deposits.

• A premium, super multi-grade motor oil offering unique TriShield(TM) technology that actively protects against particles that build-up in car engines with the most advanced deposit-fighting ingredients
• Uses premium, custom-made additives and is the most advanced conventional oil available
• Provides maximum protection against viscosity and thermal breakdown and is ultra-low friction to improve gas mileage
• 5W-20 exceeds API standard SN, SM, SL, SJ, as well as exceeding all requirements of ILSAC GF-5/GF-4/GF- 3 for API certified gasoline engine oils
• Exceeds Chrysler MS-6395 and Ford specifications WSS M2C153-H, WSS M2C930-A and WSS-M2945-A
• Exceeds service fill requirements for Ford, Honda, Toyota, and Chrysler where an SAE 5W-20 motor oil is specified
• SAE 5W-20 should only be used in vehicles where SAE 5W-20 is recommended by the manufacturer
• Remember to consult your owner's manual to help decide if this product is best for you