1999 Volvo Penta "WT" Models Workshop Manual, Page 22Get this manual
Fuel Injected Models Only: Prepare an engine "storage mixture" in an outboard V6 six gallon fuel tankIt must consist of gallons fuel; pints (64 oz Volvo Penta Fogging Oi! or (X!IIC Storage Fogging Oil; and '3 cup (2.5 oz DuraPlusTM Marine Fuel Stabilizer or 2+4 Fuel ConditionerMix these ingredients thoroughly ave
Disconnect boat fuel line at engine fuel pumpRun engine on the "storage mixture" for approximately minutes at 1500 RPMThis will ensure that all fuel system and internal engine components are thoroughly protectedShut off engine before the "storage mixture" is used upINotel Do not run engine out of fueThe electric fuel pumps will be damagedStep 5Drain Cooling System: [Notel When draining engine, raise or lower bow of boat to position engine in horizontal planeThis will provide for complete drainage of block and manifoldsIf bow of boat is higher or lower than stern, some water may be trapped in block or manifoldsImproper or incomplete draining may result in freeze damage to the engine, manifolds, vertical drive or other componentsFreeze damage is not covered under the warran-