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Old 08-01-2011, 12:28 PM   #1
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I figure efficiency improved as the years progressed even with the increases in horsepower, but if I remember right the sticker on the car said 24 or 26 highway during the first years of the car. I never expect to get sticker estimates, so I'm happy so long as it's in the 20s. I don't know how some people are getting that good mileage unless you're really cruising at the speed limit in top gear, which I'd love to do if the engine didn't apparently dislike it so much.
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Old 08-01-2011, 12:39 PM   #2
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Boxster 2.5 w tiptronic, ECU is tuned/remapped

I get 21-22mpg mixed driving. Around 24mpg highway.

Before the tuning I got 18-19mpg


Getting a remap is the best performance mod done so far, better fuel economy and more power!
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Old 08-01-2011, 02:17 PM   #3
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1999 2.5L 5-speed

Typical 21-22mpg. High 24, low 19. Drive it like I stole it on 91 octane Commiefornia Premium Unleaded with 10% Ethanol.
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