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Re: How to optimize a RCSB for gas mileage
Had the RCSB 4.3 5speed for 7 years.
245-70 tires on the steel wheels, 3.23 rear.
15-16 mpg in town and about 21 highway.
(a mile or two less in the winter with the crappy winter gas)
Unless I drove like an idiot....
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2006 Sierra RCSB V6 5 Speed RWD.
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