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I have searched the forums and online and tried to read up on the cleanest and best performing fuel to put in my 2009 C6. I currently fill up at Shell with V-Power and have been nothing but happy but I figured I would throw a feeler out there and see the community's opinons.
According to Wikipedia octane in Australia is measured as RON, while in the US it is (R+M)/2). There is a 4 to 5 point difference, so 98 in Australia is about 93 in the US.
I usually use Shell because the octane rating tends to be higher than other premiums sold where I live. Never had any problems with any premium brand that I have used.
the difference between top tier fuels is the additive package. the other trick it to go where there is a large volume of turn over so you don't end up with watery fuel & with rusty fuel deposits.
I have never heard of one being better that another. If you believe car magazines, they test cars with SHELL fuel though ? for as long as I can remember I try to only buy, Shell, Chevron & BP fuels for my cars, trucks & bikes.
I use Shell V power because the Chevron stations left the area.
Used the "100% pure gas" for a while, but now with a $.54 difference per gallon, didn't seem worth it.
As long as you're putting regular miles on your Vette and filling up every couple of months, 10% ethanol fuel shouldn't be a problem. If you're one of the Vette owners who only drives a few hundred miles a year where a tank might last you 4-6 months, I'd recommend using non-EtOH fuel or minimally, put some Stabil or other fuel additive in at every fill-up. Moisture is the main enemy of letting EtOH fuel sit in your tanks for months at a time.
As long as you're putting regular miles on your Vette and filling up every couple of months, 10% ethanol fuel shouldn't be a problem. If you're one of the Vette owners who only drives a few hundred miles a year where a tank might last you 4-6 months, I'd recommend using non-EtOH fuel or minimally, put some Stabil or other fuel additive in at every fill-up. Moisture is the main enemy of letting EtOH fuel sit in your tanks for months at a time.
No problems with the 10% ethanol. I just prefer 100% pure gas. When running it, car seemed to get slightly better gas mileage with better performance. Can't say Absolutely that it did though.
I do use 100% pure gas is in my power equipment and Stabil when needed.
You are absolutely correct about moisture using E10 and letting it sit. Friend of mine left E10 in a car for a year or two. Talk about a bad smell! He had to drain the tank and refill with fresh fuel.