Which Chevron fuel to run.

[ridgeclimber]

What Chevron fuel have you guy's been using? I have always used Chevron Supreme 94 octane. But I was talking with a couple of guy's over the week end about fuels. They were saying that the chevron 94 octane fuel is oxygenated and because of the additives in it causes moisture to accumulate in the engine, which could of cause a crank bearing failure. They said the Chevron Supreme 91 octane fuel is better. Our local dealer here also said the same thing. Is there any truth to this?

 

[richracer1]

Wow 94 octane. The highest we can get in my area is 93 octane and it's 10% alky.

 

[05900]

Once the engine reaches operating temp there is not much moisture present.
How would the oxygen in the fuel cause excessive moisture if it is not running (engine)?
You would probably be fine with 91 anyway.