About 16mpg highway or thereabouts.
Yes
See link.
Replace it every 75,000 miles.
I own a 1999 GMC K2500 suburban with 145K miles on it. I have had it 7 years. Dont plan on getting much higher than 10mpg around town and maybe 15 on the highway with everything tuned up. I speak from experience.
8 To 10 miles per gallon on HWY if your lucky.
If your lucky. 10 to 12 miles per gallon.
mine holds 44 gal.
I have the 1999 Chevy Suburban 1500 with the Vortec 350 motor, (Gasoline) and it holds 42 gallons of gas.
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1999 Chevrolet Metro
It has a 42 gallon fuel tank.
Poor gas mileage.