some oil has traces of natural gas in it to make it work properly
You have too much oil in your gas, that's why oil and gas is coming out your exhaust.
because oil is refined into gas
Wash in gasoline.
Answerif it,s a 2 cycle mix gas 50 parts to 1 part oil,if it,s a 4 cycle . none, gas treatments will cause a lawn mower engine to over heat,I have small lawn equipment that used gas/oil ratio, I use a gas treatment in mower to keep from getting gunky over winter months, should I use a gas treatment for equipment that uses gas/oil ratio
It may be over fuled and by passing the rings into the oil.
Only one reason. Gasoline is mixed with the oil.
4 cycle mower.... gas is separate from oil!
generally in a lawnmower you use straight gas. there should be oil in the crankcase for engine lubrication. check the owners manual for proper oil weight
it leaks oil.
The gas will be darker and have a different smell
A gas only engine has a spout where oil is added to the engine. If there is no spout, then it is a gas/oil engine. FYI - gas only engine is a four-stroke (four-cycle) engine and the gas/oil engine is two-stroke (two-cycle).
Dirty or stuck open needle valve in carburetor.