OutdoorKing Repair Forum Forums Repairs and Maintenance Questions on Engines Questions On Briggs & Stratton Engines B&S-what fuel do you use?

You do not need to add oil to the fuel of any engine that has an oil sump lubrication system. I've heard rumours of B&S crankcase-induction 2-strokes made many years ago, but I've never seen one. Normal B&S engines are all sump-lubrication 4-strokes. Putting additives in the petrol of such engines is even sillier than putting them into the petrol (or oil) for your car.