Re: SAE 60 Oil

[steveh]

This is another one of those topics which was discussed extensively but lost when the boards went down. What I recall from that discussion was that the modern TCW-3 does a better job at lubrication and burns more completely than the SAE grades. However, the higher viscosity of the SAE grades provided better sealing around the piston rings yielding higher compression and better idling. There were also some comments about high viscosity 2-cycle oils for use in older airplanes that might work in our outboards…