What Fuel Does A 4 Stroke Lawn Mower Use

Do not use special additives.

What fuel does a 4 stroke lawn mower use. Lawnmower makers for many years offered a choice between two stroke and four stroke engine types. Gas with higher concentrations of ethanol is not. It s also more expensive than other types of gas such as 87 octane. Is it ok to run a lawn mower on premium gas.

Most four stroke engines require fresh unleaded gasoline with an octane rating of 87 or higher. Keep lawn mower gas fresh by using briggs stratton fuel stabilizer specially designed for small engines. Synthetic oils are an acceptable oil at all temperatures. When choosing lawn mower oil use a high quality detergent oil classified as for service sf sg sh sj or higher.

Change fuel brands or providers if engine problems occur. Do not mix oil in gasoline or modify engine to run on alternate fuels. For continuous use such as commercial lawn cutting or pressure washing. Do not mix oil with the gasoline for a four stroke engine as this can damage the engine s components.

Premium gas such as 93 octane helps high powered cars run smoothly and efficiently. 2 stroke cycle spark ignited engines. Lawnmowers and other lawn equipment such as tillers have similar motors. While e10 fuels are approved for small engine equipment usage it is not recommended especially in handheld.

Always refer to your owner s manual for the correct fuel to use. The use of synthetic oil does not alter required oil change intervals. However most large yard machines use a four cycle engine designed to work for prolonged periods. Stale fuel can cause engine damage from acid and gum deposits forming in the fuel system or carburetor.

Damage to the carburetor or engine due to bad fuel will void the engine warranty. E10 fuels are approved for usage in lawn mowers and outdoor power handhelds like chainsaws trimmers and leaf blowers. Do not modify the engine to use alternate fuels as this can also damage the engine s components. Always mix a high quality 2 cycle oil such as briggs stratton lawn mower oil at a 50 1 gas to oil ratio.

The small amount of gasoline in your lawn mower s carburetor will deteriorate faster than the fuel in the fuel tank due to its small volume and proximity to residual engine heat. This will damage the engine components and void the engine warranty. Consider the following guidelines when using a four stroke engine. You can use gas with ethanol but more than 10 percent ethanol is typically not recommended.