10w-30 if it's above 32 degrees, sae 30w is acceptable above 50 degrees. k series and magnum engines should use only sae 30 above freezing or 5w-30 below freezing
with a kohler regulator tester
If it has a Briggs and Stratton engine you need SAE30. If it is a Kohler it uses 10W30.
Kawasaki and Kohler mower engines
tow it
The mower is used on the grass. A drill can be used to dig holes for bulbs. A sprayer is used to spray insecticide.
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Napa, auto zone, most mower shops,
That depends on what size of Kohler engine you have ( my 149 cc Kohler engine on my lawn mower takes ( 20 ounces / 600 ml )
you may try yesterdays tractors site
with a regulator tester kohler sale one that will test most regulators
Try here: http://www.demottenterprises.com/CC/manuals.asp