Quicksilver 4‑Stroke Marine Engine Oil 25W40 - 1 QUART - 92-8M0078619 Mercury-40HP-EFI-1999 you want protection that works

you want protection that works quietly and consistently

stern light or other items

Q5: Why not run regular car oil

Kit includes a hose with a screw cap that fits SeaStar or equivalent oil bottles and a push pin for venting/resealing bottles

Quicksilver 4‑Stroke Marine Engine Oil 25W40 - 1 QUART - 92-8M0078619 Mercury-40HP-EFI-1999 you want protection that worksQuicksilver's 4Stroke oil technology outperforms automotive oils in marine applications because of its specialized additive package designed for marine engines. For use in all 4Stroke Marine Engines New formula 4Stroke oils are engineering approved for all marine 4Stroke applications, including Outboard, MerCruiser, High Performance, Stern Drive Inboard, and exceeds all Marine industry 4Stroke oil requirements including FCW and FCW Catalyst