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How to Properly Use Ethanol Fuel in Power Equipment

Posted in Small Engines - Video from Husqvarna USA - Article by

Ethanol Fuel (E10) is everywhere! Now almost all gasoline contains this blend of 90% gas and 10% ethanol.

The positive side of Ethanol fuel is that it reduces exhaust emissions and helps reduce the dependence on foreign oil.

For automobiles like cars, E10 won't do much harm, except reduce your gas mileage by a few mpgs (as some claim).

But for Outdoor Power Equipment, ethanol fuel can be a damaging and costly issue, if NOT Used Properly!

What are the Effects of Ethanol?

  • Over time, Ethanol will start to absorb water, which is never good to have in your fuel tank. This will lead to poor engine performance.
  • Ethanol is also a destructive solvent. It will slowly dissolve the parts of your fuel system, creating gummy/varnish deposits that clog the carburetor and internal engine parts.

Ethanol (E10) PROPER USE Guidelines:

  1. Always add a Fuel Stabilizer as soon as you get fresh gas.
  2. Shake the fuel mixture in your gas can to stir up any small amounts of water that may have collected at the bottom.
  3. Store fuel in an air tight gas container (no vent caps).
  4. Don't store fuel/oil mixtures with a stabilizer longer than 90 days, just to play it safe.
  5. Keep gas caps secured on tanks at all times between fill ups.
  6. Long-Term Storage: Completely drain the fuel tank and run the unit dry. Also drain the carburetor bowl where some left over gas will collect.

*The Ethanol Golden Rule:

Only buy a 30 Day Supply. Keep your Fuel Fresh! And never run stale gas in your equipment.


Jack's Safety Tips: Before servicing or repairing any power equipment, disconnect the spark plug and battery cables. Remember to wear appropriate safety glasses and gloves to protect against harmful chemicals and debris. View our Disclaimer.