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I just bought a murray 11/36 riding mower with a briggs and stratton engine, mind you I am a city boy from northern California, and I don't know a thing about riding mowers. What type of gas do I use and what kind of oil do I use? I do know in a regular mower I use unleaded gas and 2 cycle oil.
Let's loose the notion of a "regular mower". My definition and your definition could be different. There are 2-cycle and 4-cycle engines. The 2-cycle engine uses a gas/oil mix, the 4-cycle engine has a crankcase and you use straight gas. The 2 cycle engine has reeds where the 4-cycle engine is the same type as your car and has intake and exhaust valves.
Just to mess up the terms, there are few 2-cycle engines that have separate resovours and mix the gas and oil on the fly.
The BIG difference between a car and a small engine is that a non-detergent engine oil is used. It's best to use a 2-cycle engine oil when you mix with gas and best to use a 4-cycle small engine oil for small engines. Standard 30 W-ND will do in a pinch. There is even special formulations of oils for snowblowers.
Don't use 87 octane. Use at least 89.
Your answer is then use 89 octane gas and a 30 W-ND engine oil formulated for 4 cycle engines for your small engines that don't use a mixture of oil and gas. 30 is the viscosity and the ND is non-detergent.
Use 2-Cycle oil ONLY for those engines that use a mixture. These engines are seen on gas trimmers, chain saws etc.
2-cycle engines are not position sensitive, but 4 cycle engines are. You could turn your chain saw upside down with no ill effects, but don't do it with your rider or your car.
I just bought a murray 11/36 riding mower with a briggs and stratton engine, mind you I am a city boy from northern California, and I don't know a thing about riding mowers. What type of gas do I use and what kind of oil do I use? I do know in a regular mower I use unleaded gas and 2 cycle oil.
I prefer to use the highest octane fuel for all my outdoor power equipment. For the briggs and stratton use sae 30 motor oil IN THE CRANKCASE. You do not mix oil with the fuel for a four cycle engine. the oil goes in the crankcase, and put the regular highest octane fuel you can stand to pay for in the fuel tank.
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