Rodney
Do you have a TBI or a vortec?
15mpg is about average for a stock TBI or a lifted Vortec with oversized tires at hwy speeds.
A stock suspension Vortec with stock sized tires like Dylan's will do better.
Dumb question on mpg
- Thread starter xanatost
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Rodney
Do you have a TBI or a vortec?
15mpg is about average for a stock TBI or a lifted Vortec with oversized tires at hwy speeds.
A stock suspension Vortec with stock sized tires like Dylan's will do better.
brudgers90
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idk maybe its something to do with the police package or maybe my gauge isnt acurate the gauge reads 20.9 on my dash
Is your speedometer right?
ChrisAU
Full Access Member
Otherwise known as the lie-o-meter.
brudgers90
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its off 4mph because of the wheels
So your DIC is way off. Why don't you change your tire size with the diablo?
SunlitComet
OBS Jedi-Do Good
i just put jantzer ported tb on and have to move to to Rockford, IL twice this week. i will get a current mileage run on mine for you all. my speedo is off because of tire size but i can re-calc it for you.
xanatost
Full Access Member
Mine has the Z71 package with 32" tires. I really need a oil change. I usely get 450 miles on a full tank.
TheBlueBeast
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If I "old man drive" it I can hit 22. I also have the windows down and no A/C, which let's face it, when it's 100+ degrees out, not worth it. Most of the time, 60 mph, easy on the brakes, coasting, driving like a responsible geriatric (which at 26 is NOT easy) I can hover at 18 - 20 mpg on the highway and usually get between 12-15 mpg in town.
