G'day Y'all,

This is probably more relevant to Australian Volvo owners, I own/drive a 1988 740 sedan with B230F and AW71 4spd auto(260,000km). My car is fitted with the extended range twin fuel tank, which I can fill to about 85litres from almost dead empty.

In the normal course of events I manage to achieve 930km to a tank of fuel. This is a combination of express/highway and outer Urban driving. I'm not always driving for peak economy (yeah right), I have to get to work after all. :grin:

What has spurred me to pose the question is I have noticed a significant difference in range between ULP (normal for Oz 98 octane Unleaded) and E10 (10% ethanol mix) fuel. In Oz there is a discount of between 2.5/3 cents a litre on E10 over ULP to entice people to use it. ULP is currently A$1.60 per litre in Oz.

My car only managed to achieve 825km on E10, which is virtually 100km short! Now aside from the other problems associated with the use of ethanol blended fuel, the "discount" would appear to be not of good value. Now my previous car (Ford EA Falcon SW 3.9l 5spd) had similar results in that E10 didn't provide the "expected" range from a tank full of fuel.

So I guess my question for everyone is,"What has been your experience in comparing the performance/economy of E10 and ULP?"