Is there a benefit to higher octane gas in yard equipment?

Not unless it's the recommended minimum for that engine.

If the engine doesn't have a high enough compression ratio to need higher octane, there's no advantage.

Higher octane doesn't go stale as quickly. In better fuel brands the higher octane fuels contain more detergent additives. I've always run at least mid-grade which is recommended by some equipment manufactures as a minimum.

I always use no ethanol premium, just because. The stuff seems to last longer than it did when I used regular gas station gas.

Unless the engine has a higher compression ration which makes it a necessity, it is a waste of money.

During the hottest months, I will run an oz or so of 2 cycle oil per gallon of gas. It helps lube the intake valves a little better. Typically shows a few degrees drop in temperature on the motor as well.

It would likely run perfectly without my additions, but I like tinkering with things that aren't broken.

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Is there a benefit to higher octane gas in yard equipment?

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nope...the only reason you would need higher octane is if the engine was detonating...and I have never heard a small engine detonating.

the only time that I think it would be conciveable would be if carbon had built up in the cylinders to the point that it started detonating...and then I would just flush some seafoam through the intake to knock out the carbon.

Higher octane fuel ,doesn't degrade as quickly. That generally helps in lawn equipment.


End of season, fry to run some Stabil through it and drain the tank.

Only if you shave the head to increase the compression add a hotter spark plug