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Originally Posted by KevinH1990
Most of the stations in this area began using a mixture that contains 10% ethanol about 5 months ago. There is one station near my work that does sell unblended gasoline - probably because it is in a rural county. So, I've avoided using the ethanol blend in my Boxster.
Until recently the unadulterated gas was cheaper than the blend. Now, the ethanol blend is 3-4 cents per gallon cheaper. Any opinions on whether I should continue to avoid ethanol? In my other cars, it seems that using ethanol results in lower gas mileage.
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Hi,
Ethanol contains about 10% less energy/vol. than straight gasoline. This would account for the lowered MPG.
So far as it's compatibility, at these concentrations (10%) it won't cause any harm. Hope this helps...
Happy Motorig!... Jim'99