You're looking for an ISO 68 gear oil. ISO 68 hydraulic oil is common,but different and wrong.
Shell Omala S2 G 68 Mobil mobilgear 600 XP 68 I'm not sure if these are available in small quantities On Mon, Oct 20, 2025 at 11:16 AM James Hesketh via CnC-List < [email protected]> wrote: > When I got my boat with a Yanmar SB8 there were a couple quarts of 20w > oil for the gearbox onboard, which I've used. > > Now I'm looking to purchase more and the only straight 20W I find (on > Amazon) is a "Bearing Assembly Oil." > > Is that what I need, or what do people recommend for these old gearboxes? > > TIA > Jim Hesketh > "Whisper" C&C 26 > Your contributions help pay the fees associated with this list and help to > keep it active. Please help by making a small contribution using PayPal > at: https://www.paypal.com/paypalme/stumurray All contributions are > greatly appreciated.
Your contributions help pay the fees associated with this list and help to keep it active. Please help by making a small contribution using PayPal at: https://www.paypal.com/paypalme/stumurray All contributions are greatly appreciated.
