<quote name="Shane Hathaway" date="Wed, 11 Jun 2008 at 22:31 -0600"> > With all this discussion about gas prices and efficiency, I thought I'd > throw in a tip. I just changed my Cougar's air filter and spark plugs > and my average MPG jumped from 24 to 28, a 17% improvement! They were > way overdue. So if you're looking for ways to improve your gas mileage, > first get all the regular maintenance done. It will pay off quickly.
Tires are the next big thing. Much less bang though. Generally a 2-3% increase (if they were bad of course). Not necessarily replace the tires, proper inflation helps, too.
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