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Old 05-15-2009, 09:58 AM   #12
kwjones
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Posts: 178
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Join Date: Feb 2009
Location: Rising Sun, MD
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Quote:
Originally Posted by ruskie View Post
I pump at gas stations that sell 98 and 100 marked fuels The 100 one is bit more expensive but I assume it means I burn less to travel the same distance.
I ride a motorcycle, and have seen quite a few discussions about gasoline/octane. Thought this might help:

If your car doesn't require high octane gas, don't use it. Yes, your car will work with it, but it's a waste of money and gas. The higher the octane, the slower gas burns. Unless you have a high compression engine that needs high octane, you're left with unburned gas residue in your pistons.

If you have a high compression engine that needs high octane, don't use the lower octane becuase, that's right, lower octane burns faster, which throws your timing off and starts to produce engine knock. The high compression is what converts the slower burning fuel into energy.

There are other ways to save gas.
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