E10 what is the octane rating?

Answer 1

The octane rating of E10 is the same as normal gasoline. However, the problem with ethanol blends is when they become phase separated (water/fuel layers). Since ethanol is hygroscopic (absorbs water) and the octane rating of ethanol approximately 114, what happens is the ethanol will attract to the water and drop the octane level of the gatosoline tremendously. If this happens, I would recommend draining the fuel but if that is not possible I would recommend using an octane enhancing additive such as Eth-Guard to increase the octane rating back up to normal.

You can view it here: www.e10gasadditives.com/product_ethguard.html

Eth-Guard is safe in all engines and contains no harmful ingredients such as alcohol, MMT, TEL, MTBE or lead. It will lubricate the fuel system, increase the energy level and octane rating of the fuel and prevent phase separation.

Also, I would recommend testing gas upon purchase and taking other simple precautions to assure that you're using quality fuel.

To view other E10 information visit: www.fueltestkit.com