1999 Volvo Penta "WT" Models Workshop Manual, Page 19Get this manual
Check the motor 011 level frequently with the dipstickWhen oil is to be changed, remove dipstick and withdraw oil from crankcase through withdrawaldipstick tubeThe oil withdrawal tube is provided so 011 does not have to be drained into the bilgeWithdraw oi with suction pump or use avK::: Oil Drain Pump Kit,
PIN 172473Fill the crdnkcase to the specified capacity with quality motor oil labeled for service category SGCD which meets General Motors Sta,'1dard GM-6094-MOils conforming to this standard contain detergent and anti-wear additives that will prolong engine lifeWhen changing motor oiL select from the following chart the SAE viscosity that matches the temperature range in which the boat will be operatedIf it is necessary to add motor oil, use motor oil of the same viscosity
IF THE LOWEST ANTICIPATED TEMPERATURE IS:
THE FOLLOWING SAE VISCOSITY OILS ARE RECOMMENDED: SAE 30 SAE 20W-20 SAE 1DW
F (00 C) and above 0' (-18' C) 10 32- (D- C) Below (_18 C)