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Old 01-09-2007, 02:06 PM   #37
nsmitchell
 
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I tried Premium and I saw 33MPG. That was mostly high speed highway. Nothing great, but it was worth the $2.00 extra to find out. :)
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Old 01-14-2007, 07:17 PM   #38
calmcool
 
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About Octane it is the second truth story about why the North American can not get the high performance car and the other story would be the incidence that happen, the US car manufactures whose ask the government to protect their own products right in 1994 and deny high performance and high quality foreign products to cross the US border.

Low Octane fuel (87 Octane) are actually very bad fuel for ultra high performance engine such as high compression with high output or small displacement and high compression turbo engine with high output.
That why for the high end engine it requires at lease 92-94 octane, which is actually a recommendation from car manufactures.

97 octane is perfect for high performance street car but American don't get that because they prefer cheap gas.
And in some European and Asian country gas station. They offer 97octane and up to 102 octane!

But do not confuse a pure high performance fuel brand with the race fuel Methanol which is a compound of fuel that only offer for very special race engine application. And they are "very bad" for any type of street engine without saying that they are very bad for the environ. They also sale in Europe and Asian countries. And "yes" they are cheaper than the same grade of fuel.

87 octane fuel create more pollution and give poor performance than the premium grade fuel 94 octane.
The 94 octane give better performance and reliability to car owner and better mileage.
Today there is also the added Ethanol fuel and the 20% ethanol fuel.
They are part of the bio fuel but not exactly like the bio-Diesel fuel story.
It is a 9000-year-old Chinese invention and successful developed by the French for cars application.
This kind of fuel are even more "friendly for the environment" than any fuel that we use today. They give more horsepower too but cost more expensive than the same grade of fuel.
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