In Australia: E10 fuel or regular unleaded?
Ok so apparently E10 fuel is cheaper, but then some people say it doesn't get you nearly as far as regular unleaded fuel.
By FACT and not just opinion or rumor, what saves you more in the long run?
Answers & Comments
Verified answer
I'm not sure what E10 is in Australia, but I'm assuming its an Ethanol blend. If this is the case, you may save a few bucks in fuel cost, but if your car is not set up to run an Ethanol blend, your gas mileage will suffer significantly. Also, Ethanol tends to eat up rubber, so if your vehicle hasn't been converted to use it, expect some repair bills down the road.
Manufacturer's prescribe a certain octane for each vehicle they produce, and there is good reason behind that. Stick with the manufacturer's suggested fuel, and save yourself some heartache in the long run.