Is Bio Ethanol Gas bad for your vehicle?

[VFX]

I have 2 vehicles that are recommended to run higher octane gas so I run Octane 92 (recommends 92 min.) for one & Octane 94 (recommend 93 min.) for the other.

With the 'better for the environment' thing, along with getting BCAA points, I decided to use Bio Ethanol enhanced fuel from Husky & have been using it for the past 3 yrs.

Now I read on a BMW forum that 'corn gas' is bad for the engine & will lead to quicker degradation & engine failure

They say that using something like Shell 91 Octane would be better than Husky 94 Octane (better performance, better additives & detergents etc.).

Can anyone chime in & shed the light on the myths regarding bio fuel?

Link to Husky

As an aside, does anyone know any 94 or higher octane gas in lower mainland that isn't Husky?

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