The best fuel for 2-Cycle engines is an ethanol free fuel.
At Cat 6 Tools we have determined the best fuel for 2-cycle engines is ethanol free and already mixed with the correct gas:oil ratio.

by Titus Nelson, PE
Inventor of the Holey-Moley Digger

Even though Ethanol Free Fuel does not deteriorate carburetors in 2-cycle engines, like gas with ethanol, we strongly recommend, running the engine until the tank is out of gas, so only put into the tank the amount of gas you feel you will use. This will keep the engine in good shape for your next use, just add the fuel and start the engine.
When using the best fuel for 2-cycle engines, even if left in gas tanks and carburetors there is less chance of having trouble on the next start.
Many times, 2-cycle engines are shut down, with the thought that it will be run again in a few days or so. Typical of human nature, before you know it a year has gone by and your nice little engine needs a little carburetor work. Based on my experience, when an ethanol based fuel is left in an engine, even with stabilizers, after a season the carburetor may need rebuilding. Even a new engine that has only run for an hour or so, may require a complete carburetor rebuilding after sitting for a year.
One of the best ethanol free fuels available everywhere is TruFuel 4-cycle engineered fuel. As a result of good engineering, the fuel is specifically formulated for 4 cycle engines, and it comes in cans that are good for long term storage. In addition you can buy it by the gallon or even smaller amounts. I personally use the 32oz cans as they are about the amount I typically use in one operation. If I intend to only run the engine for a short period, I only use the amount I think I will need. I then run the tank empty in case the engine sits for an extended period.
We strongly recommend ethanol free fuel for the 2-cycle engines we offer at Cat 6 Tools, including our:

If you have an echo engine and want to mix your own fuel mix a 50:1 ratio with 89 through 93 Octane fuel can be used in all ECHO 2-stroke equipment, provided the oil is ISO-L-EGD and JASO M345 FD certified. You can use Power Blend 16 oz. 2-Stroke Cycle Engine Oil. Ideal for 2-stroke/cycle engines when not using a premixed fuel. However, why go to the trouble just get premixed TruFuel.
As advertised, TruFuel 2-cycle fuel is ethanol-free. The formulation contains a proprietary additive technology to ensure smoother startups and superior trigger response. As a result this fuel offers an advantage you can hear and feel. Your 2-cycle equipment will start and run noticeably better, last longer and need fewer major repairs. Because this fuel comes in metal cans that are easy to store for long periods it is simple and easy to use.
Trufuel is available at most hardware stores including:
- Tractor Supply
- Lowe’s
- O’Riley Auto Parts
- The Home Depot
- True Value Hardware
- Auto Zone
- Ace Hardware
- NAPA Auto Parts
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