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Mercury Synthetic Blend 4 Stroke 25W 40 Marine Oil - Quart - 92-8M0078629

A technology specific 25W-40 marine oil formulated for the world's first and only supercharged and intercooled outboard engine. The unmatched torque and acceleration of the Mercury Verado engine requires maximum protection found in this well-balanced combination of today's highest quality synthetic and mineral base stocks. Mercury 25W-40 Synthetic Blend Outboard Oil meets the stringent marine operational requirements of all of Mercury/MerCruiser's 4-stroke marine engines. First in class for all FC-W durability test properties with industry leading internal Marine engine corrosion protection.

25W-40 Synthetic Blend Oil shows significantly better shear stability and volatility, and is higher in viscosity and High Temperature High Shear (HTHS) after shear. The popular competitive formulation uses a fair amount of VM (viscosity modifier) which is subject to shear, while the Mercury oil contains no VM. As a result, the Mercury oil will hold its viscosity far better in high-revving and long-running situations when the engine needs it most. The HTHS after shear follows along with the viscosity stability, which also results in improved bearing protection.