Want to know more about how your engine is breaking-in or wearing? Curious about whether or not your oil is doing its job? Want to be ahead of problems that may develop? PartsVu has partnered with Blackstone Laboratories and we are now offering professional oil analysis kits. Results are typically received in a few days via email. Shop now. For use in all 4-stroke marine engines. This oil is engineering approved for all marine 4-stroke applications including: Outboard, MerCruiser, High Performance, Stern Drive/Inboard. Exceeds all marine industry 4-stroke oil requirements including FC-W compatability. Mercury's 4-stroke oil technology outperforms automotive oils in marine applications because of its specialized additive package designed for marine engines. Kit Includes: Gallon and a Quart of 25W40 Mercury Marine Oil 35-866340Q03 Mercury Quicksilver Oil Filter The amount of oil included in this kit is adequate for most of the specifically noted Mercury outboard models. If your particula