LUBRICATIONSection 8LUBRICATIONOil has four purposes. It cools, cleans, seals andlubricates. Briggs & Stratton engines are lubricated witha gear driven splash oil slinger or a connecting roddipper.OILCapacity ChartBASIC MODEL SERIESCAPACITYALUMINUMPINTSLITERS6, 8, 9, 11 cu. in. Vert. Crankshaft1-1/4.66, 8, 9 cu. in. Horiz. Crankshaft1-1/4.610, 13 cu. in. Vert. Crankshaft1-3/4.810, 13 cu. in. Horiz. Crankshaft1-1/4.614, 17, 19 cu. in. Vert. Crankshaft2-1/41.114, 17, 19 cu. in. Horiz. Crankshaft2-3/41.322, 25 cu. in. Vert. Crankshaft31.422, 25 cu. in. Horiz. Crankshaft31.4CAST IRON9, 14, 19, 20 cu. in. Horiz. Crank.31.423, 24, 30, 32 cu. in. Horiz. Crank.41.9Oil RecommendationsUse a high quality detergent oil classified "For ServiceSC, SD, SE or MS." Detergent oils keep the enginecleaner and retard the formation of gum and varnishdeposits. Nothing should be added to the recommendedoil.RECOMMENDED SAE VISCOSITY GRADES*If not available, a synthetic oil may be used having 5W-20, 5W-30 or 5W-40 viscosity.Change Oil (Crankcase)Change oil after first 5 hours of operation. Thereafterchange oil every 25 hours of operation; more often underdirty operating conditions. Remove oil drain plug,Fig. 1, Ill. 1 or 2 and drain oil while engine is warm.Replace drain plug. Remove oil fill plug or cap and refillwith new oil of proper grade. Replace oil fill plug or cap.Check oil level regularly – at least after five hours ofoperation.BE SURE OIL LEVEL IS MAINTAINED.Fig. 1. Change Oil CrankcaseCheck Oil (6 to 1 Gear Reduction Models)6, 8, 60000, 80000, 100000, 130000Remove the oil plug in lower half of gear cover every 100hours of operation to check the oil level. Fig. 2.Add SAE 10W-30 oil at upper oil fill plug until oil runs outof lower hole. Replace both plugs.NOTE: Filler plug has vent hole and must be placed intop opening.Fig. 2. Check Oil LevelOCTOBER 19781
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