Quote:
Originally Posted by NJSPEEDER
gears are a way better bang for the buck and will not mess up mileage, that is jsut an old wives tale. most people will see the same or in some cases even slightly better highway mileage. your mileage around town will change if you like messing around, but that is up to how you drive more than the gears.
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I drove with the cruise set for 928 miles(one way when I drive home to IL) when I was stock and got 310-315 miles per tank. I added 3.73 gears and that mileage went down to 290 +-5. If you think about it like that if you only drove on the highway to work and back you would cost yourself roughly an extra $1.50 per fill up(if the price of premium is $3.12). Multiply that by an average fill up of 3 times per month x 12 months = $54 if you just drive normal on the highway. It's all roughly estimation though

Since he just drives around town he's going to fill up more in theory. It all depends on the rpm he's at now compared to the rpm he will be at with 3.73s.
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1999 MBM T/A - the new ride

2004 CE Corvette - 1.410 - 10.246 @ 133.39
2003 Silverado - Lifted 6 on 35s
2000 T/A WS6 - 11.190 @ 119.79...SOLD