25W-40 4-Stroke Marine Engine Oil

Sierra 4-stroke 25W-40 Engine Oil has been formulated to provide excellent lubrication and corrosion protection. Stern Drive and Inboard engines operate under high load and running stresses. This product is developed for the marine environment and will outperform standard 4-cycle automotive engine oils. Sierra's 25W-40 oil offers excellent detergency, anti-oxidnats, anti-wear, and corrosion protection. The benefits to your engine are: reduced wear to the internal components, protection of itnernal parts from corrosion, cleaner pisons, and prevention of ring sticking. Sierra's 25W-40 oil also provides excellent low temperature operating properties. Sierra Quality Marine Lubricants exceed stringent Sierra and OEM warranty requirements. DO NOT MIX WITH GAS. NOT for use in 2-cycle pre-mix or injection engines.