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2013 Chevrolet Suburban
Platform: GMT 400, 800, 900

Really Bad Gas Mileage

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Old May 28th, 2008, 9:47 AM
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Default RE: Really Bad Gas Mileage
ORIGINAL: 73shark

Do you have 4.10 gears? I have 3.73s and get 18 @ 65.
No, 3.73 which is GT4 right?
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Old May 28th, 2008, 10:17 AM
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Default RE: Really Bad Gas Mileage
Yep but I was asking BMoTahoe since he was staying in V4 at hiway speeds on level ground, something mine won't do [] but seems like those w/ 4.10 gears can cuz engine is at a more efficient rpm range.
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