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.Mercury 100 Hour Service Kit Verado L6 8M0097858. The Mercury Verado L6 100 Hour Service Kit - 8M0097858 provides the essential maintenance components required to perform the recommended 100-hour service on Mercury Verado inline-six outboards ranging from 200 HP to 350 HP. Designed for engines with serial numbers 2B144122 and below, this kit includes the critical oils, filters, and sealing components needed to maintain performance and reliability.. Routine service intervals help maintain proper lubrication, protect internal engine components, and ensure clean fuel delivery. By replacing engine oil, filtration components, and gearcase seals, this kit