XPS Marine 10W-30 Mineral Oil

10W-30 are multigrade oils that are available in both traditional and synthetic forms. They are used in engines to reduce friction between moving parts and extend the life of the engine. They contain viscosity improvers and two oil viscosity grades because they're multi-grade oil.

One viscosity grade is for cold temperature thickness, as indicated by the number preceding the word 'W.' The W oil letter implies winter. The other viscosity grade is the more substantial temperature thickness viscosity grade, indicated by the number following the W oil letter.

Marine sterndrive, inboard, and outboard 4-stroke engines should use XPS 10W-30 synthetic blend engine oil.

Key Features:

• Compatible with sterndrive, inboard, and outboard engines Premium anti-corrosion chemicals in a marine formulation
• It shields the engine from damage, reduces wear, and resists viscosity and heat breakdown
• Compatible with both a supercharger and a catalytic converter
• Engine oil that complies with the NMMA FC-W catalyst compatibility requirement 

Orders $89 and over qualify for free standard shipping via Ground (UPS, FedEx, USPS) to the contiguous 48 US states. Shipping will be calculated for orders to Alaska, Hawaii, and U.S. Territories including Puerto Rico, Guam, and U.S. Virgin Islands.

Orders under $89 qualify for $4.99 standard shipping via Ground (UPS, FedEx, USPS) to the contiguous 48 US states. Shipping will be calculated for orders to Alaska, Hawaii, and U.S. Territories including Puerto Rico, Guam, and U.S. Virgin Islands.

P.O. Box Shipping. If you list a PO Box and select free shipping, please add a customer note with your order including a physical shipping address. We will ship to a PO Box if the shipping is comparable to other carriers. Otherwise we may need to ship to physical address or charge additional shipping fees.

Learn about additional details and restrictions by reading our full Shipping Policy

If your order arrives and it is not right, we’ll fix it…period. Doesn't fit or you're simply not happy with your item? Return any new, unused and unaltered item within 30 days of delivery of your item. Learn about additional details and restrictions by reading our full return policy.