Is gas/oil the proper fuel
do these units use a gas/ oil mixture
dcaruso2002 , Craftsman Riding Mower do not take gas oil mix. Your lawn tractor will be equipped with a 4 stroke engine. Clean and fresh gasoline should be used in the fuel tank of a four-stroke engine. The gasoline should be a minimum of 87 octane, and up to 10 percent ethanol(fuel with no ethanol best).
As far as motor oil a quality 10W30 will normally suffice, always best to check your manual. For 4 stroke small engine oil pours straight into crank case through fill tube, to full mark on dipstick(do not over fill). Links below have more info. if needed.
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