Only Straight SAE 30 Motor Oil For Volvo-Penta Marine Engine?
A reader asks: I’ve got a Volvo-Penta marine engine. The recommended engine oil is straight SAE 30. What do you suggest? Our answer: AMSOIL Synthetic 10W-30 Marine Engine Oil would be at the top of our list. The “straight-weight” SAE 30 recommendation is derived from antiquated thinking on motor oil. Some conventional multi-viscosity motor oils…



