Problem:gasoline mixes with engine oil on 6hp. Craftsman lawn mower.

If you have not over filled the oil sump, the only other possible answers; bad oil ring on the piston, oil seals in the heads are bad. These are the only ways oil can get into the combustion chamber.

FUELING ENGINE This engine is certified to operate on unleaded gasoline. Before operation, gasoline must be mixed with a good quality 2-cycle air*cooled engine oil. We recommend Craftsman brand oil. Mix gasoline and oil at a ratio of 40:1 (A 40:1 ratio is obtained by mixing 3.2 ounces of oil with 1 gallon of unleaded gasoline). DO NOT use automotive oil or boat oil. These oils will cause engine damage. When mixing fuel, follow instructions printed on container. Once oil is added to gasoline, shake container momentarily to assure that the fuel is thoroughly mixed. Always read and follow the safety rules relating to fuel before fueling your unit.

Hi scottcoles5...
The easy way to find out if the motor is 2 or 4 cycle is to check to see if the engine has oil in the crankcase...if it does it is a 4 cycle and you will NOT have to mix oil with your gas. 2 cycle engines do NOT have an oil in the crancase and depend on the oil you mix with your gasoline.
You can also check the color of the gasoline in the tank, most 2 cycle oils contain a colorant to color the gas to let you know there is oil in the gas...
Free Answer...Please take time to rate me

ADD SAE 30 SMALL ENGINE OIL. 18oz TO 20oz

SEARS SALES A 20oz BOTTLE OF CRAFTSMAN SAE 30 OIL FOR $2.59

If your mower has seperate fill caps for the oil and the gasoline, then you have a 4 cycle or 4 stroke engine. In this case use SAE HD30 motor oil. If there is only 1 fill cap and it says oil & fuel mix, then you have a 2 cycle or 2 stroke engine.
Good luck

STOP !

Your lawn mower is has a 4 cycle engine
It does not require oil to be mixed with the gas
The oil for the crankcase should be a 10W-30 or 10W- 40
NO GAS IN THE OIL
What you have is a 2 cycle oil that is mixed with gas for most weed eaters, chain saws, ect
Putting a gas/oil mix in your mower WILL severely damage it destroying the main bearings and could lead to an explosion or fire.
Please be careful

The term "Unleaded gas only" refers to the type of gasoline to be used. You would use "Unleaded gasoline" instead of "Leaded gasoline". Yes, you will mix oil with the gas normally at a ration of 50 to 1. (1 pint of oil to 6 gallons of "Unleaded Gasoline"). If you do not put oil into your gasoline, you will burn your engine up due to lack of oil. I hope this helped, Good Luck Please rate me, Thanks

If it has an oil stick, it is sraight gas. No oil stick to check oil then, gas/oil mix needed.

Mike

Drain oil... it is full of gasoline due to a bad float pin and rubber gromet in your carb. When your float pin and gromet fail, gas just keeps flowing into your carburetor, eventually flooding your motor with gas and oil mix.

yes it does require a mix. go to any lawn and garden store and get the small bottle of oil that u mix with one gallon of gasoline.