So are your vehicles FFV's (Flex-fuel vehicles) ? They are designed to properly run on ethanol (E85). The PCM (powertrain control module) and related sensors perform the correct fuel to air ratio, the fuel sytem & engine is designed to withstand the alcohol (gaskets, seals, fuel lines etc ). While Ethanol may have a higher octane rating than regular gas, which is good for higher compression engines, it also has a smaller energy density than gasoline. This means that you will have lower MPG than if you are using regular fuel (need more fuel to perform the same engine demand) and this can be as bad as 30 % less in fuel economy. Most newer cars should be able to withstand the use of ethanol (its the alcohol in it that can cause problems is older vehicles) but I wouldn't use it unless the vehicle is designed for it.
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Mike
150g reef, 55g sump, T5's, Vertech 200A, Profilux III - German made is highly over rated, should just say Gerpan made.
Reefkeeper - individual obsessed with placing disturbing amounts of electricity and seawater in close proximity for the purpose of maintaining live coral reef organisms.
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