Texasmark1 Think about why we would buy higher octane fuel. It is to deter knock in higher compression engines. The air out west is less dense so less air is pulled into the cylinder on each cycle. Less air means less fuel and the compression will be lower when the pistion is at TDC. This deters knock by it self so we can now cut the fuel octane. This is why you feel your truck runs like crap out there. It is drawing in less air leading to less compression leading to reduced power.
The problem comes in when a carbureted car comes back east with west coast fuel. We are now putting in more air leading to higher compression with less octane fuel. This can cause knock and could damage the engine if run for long periods like that.
Another problem comes with turbocharged vehicles out west. They are craming air into the cylinders but even with their best gas the motor can never see full power because of the lower octane fuel.
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Today's Featured Article - A Lifetime of Farm Machinery - by Joe Michaels. I am a mechanical engineer by profession, specializing in powerplant work. I worked as a machinist and engine erector, with time spent overseas. I have always had a love for machinery, and an appreciation for farming and farm machinery. I was born and raised in Brooklyn, New York. Not a place one would associate with farms or farm machinery. I credit my parents for instilling a lot of good values, a respect for learning, a knowledge of various skills and a little knowledge of farming in me, amo
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