Had To Look Up My Gas Mileage and Saw This.

"Dwhite - Powered by Caffeine, Daft Punk, and Corgis" (Dwhite95) 10/02/2015 at 09:46 • Filed to: None

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How the hell did the Grand Am get worse gas mileage than the Grand Prix and the same as a Bonneville? It was so much smaller...

Mattbob > Dwhite - Powered by Caffeine, Daft Punk, and Corgis 10/02/2015 at 09:49

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aero?

RamblinRover Luxury-Yacht > Dwhite - Powered by Caffeine, Daft Punk, and Corgis 10/02/2015 at 09:49

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Bizarre final drive choices for a more “sporty” feel? I don’t know. I’d have expected that on the Prix, not the Am.

ly2v8-Brian > Dwhite - Powered by Caffeine, Daft Punk, and Corgis 10/02/2015 at 09:51

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Prix and Bonny got the 3.8 Buick.

Dwhite - Powered by Caffeine, Daft Punk, and Corgis > ly2v8-Brian 10/02/2015 at 09:54

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Well, yeah. But I never though of that engine to be particularly spectacular gas mileage wise, unless the Grand Am got a really bad engine.

MontegoMan562 is a Capri RS Owner > Dwhite - Powered by Caffeine, Daft Punk, and Corgis 10/02/2015 at 10:05

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I believe it may be a case of, small engine that’s overworked doesn’t get better gas mileage than moderate sized engine that can relax.

crowmolly > Dwhite - Powered by Caffeine, Daft Punk, and Corgis 10/02/2015 at 10:06

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Could be transmission/gearing, too.

Steve is equipped with Electronic Fool Injection > Dwhite - Powered by Caffeine, Daft Punk, and Corgis 10/02/2015 at 10:15

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That 3.4 was a dog of an engine from the 70s, and didn’t have the decades of development that the buick six did. Also, torque. The 3.8 made over 200 lb-ft at a low RPM. The 3.4 had to spin a bit faster to produce its twist and maintain speed. So gearing has a good bit to do with it I guess.