I have a Briggs-Stratton 17.5 OHV on a yard man zero turn riding mower. When I start it is runs fine for a little while then white smoke just starts coming out from under the front of the mower - remo …Any HDEO like Rotella T 15w40, T6 5w40, Walmart Supertech 15w40 or any synthetic 5w30, 10w30, etc will work excellent and can often be found much cheaper than the Briggs branded oil. The most important thing regarding oil and small engines is to change it often and keep it full. Brand and viscosity are not as critical. This way also removes the risk of oil leaking out of the Briggs and Stratton Carburetor. Oil in the Air Filter. Whenever the air filter becomes soaked in the oil, squeeze it out. It is similar to the way you squeeze out excess water in the cloth. After squeezing the excess oil out of the filter, place the air filter back into the mower.
To change the filter, first drain the oil. Unscrew the old filter. Apply a thin layer of clean oil to the new filter’s rubber gasket, then thread it onto the engine by hand. Once the filter seats, turn an additional ½ to ¾ turn to get a good seal. The crankcase holds between 78 and 80 ounces of oil or about two-and-a-half quarts. Air Filter
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