Poor Gas Mileage
Thread Starter
Pro
Joined: Aug 2003
Posts: 587
Likes: 116
From: Louisville
Poor Gas Mileage
Been driving the Vette in this cold midwest weather lately. I've noticed my normal 19.8 city has gone down to 18.0 mpg. Is that typical in colder weather? Lived in Phoenix the last 3 years so the vette never saw weather this cold. 64K and no major mods to speak of.
Safety Car
Joined: Jul 2001
Posts: 4,261
Likes: 2
From: Fort Wayne,Indiana
Originally Posted by ltnate
Been driving the Vette in this cold midwest weather lately. I've noticed my normal 19.8 city has gone down to 18.0 mpg.
Team Owner
Joined: Oct 2001
Posts: 46,766
Likes: 5
From: Boynton Beach Florida
St. Jude Donor '07-'12, '20
Originally Posted by GaryZ06
Jeez......18 mpg.....I get 10-12 mpg city
You coming to Crabby Jacks next weekend? Check the South East section. 
Bob
Thread Starter
Pro
Joined: Aug 2003
Posts: 587
Likes: 116
From: Louisville
Originally Posted by C5dream
Colder air is more dense and has more oxygen. So computer probably needs to add more fuel to keep from running lean.
Is there anything I need to do such as a relearn?
Le Mans Master
Joined: Feb 2002
Posts: 6,937
Likes: 21
From: Waldorf MD
It will relearn itself. Oxygenated fuel is used to help reduce emissions in areas that have "smog" or problems meeting clean air standards. You will get poorer fuel mileage with oxygenated fuel.
Corvette Stories
The Best of Corvette for Corvette Enthusiasts
Every 2027 Corvette Engine Explained
Joe Kucinski
Designer Imagines A Corvette That Looks More Like a Corvette Than the Corvette
Verdad Gallardo
10 Ugly Corvettes That We Still Kinda Love
Joe Kucinski
Top 10 Most Expensive Corvettes Ever Sold on Bring A Trailer
Brett Foote
10 Things Every Corvette Owner Needs (2026 Edition)
Michael S. Palmer
8 Most "Only Corvette Owners Understand" Quirks and Problems
Pouria Savadkouei
10 Reasons the C6 Z06 is Still A Performance Benchmark After 20 Years
Joe Kucinski
How Much Horsepower Every Corvette Engine "LOST" in 1972
Joe Kucinski
Top 10 DOs and DON'Ts for Protecting Your Convertible Top!
Michael S. Palmer
Tech Contributor
Joined: Dec 1999
Posts: 32,910
Likes: 2,402
From: Anthony TX
CI 6,7,8,9,11 Vet
St. Jude Donor '08
Extreme cold temps will cause you to comsume more fuel to get the proper air/fuel ratio! 
Any thing below 25 degrees and you will really notice lower fuel economy. I drove 150 miles in 0 degree weather and my normal 28-30 mpg was more like 23 - 25 MPG! Its normal!
Bill
Any thing below 25 degrees and you will really notice lower fuel economy. I drove 150 miles in 0 degree weather and my normal 28-30 mpg was more like 23 - 25 MPG! Its normal!Bill
Melting Slicks
Joined: May 2003
Posts: 3,494
Likes: 0
From: McKinney Tx
Cruise-In V Veteran
St. Jude's Donor '05
Originally Posted by ltnate
Hey thanks for all the replies. I guess being a 16 degrees is the issue. Well as long as there is no snow I'll be happily driving.
SCREW THAT...aint no way I would be caught anywhere near those kinda of temps 
Well maybe for one or two nites out of the year 
Racer
Joined: Sep 2004
Posts: 476
Likes: 2
From: Orange County Ca
Originally Posted by Bill Curlee
Right now it is 4 degrees here in Groton CT!!!!!! I think I will go out and wash the car!
BC
I think I will go out and wash the car! BC
I wish it would cool off here in So Cal, had to drive to the beach with my A/C on
cuz it's been high seventies, maybe low eighties.But today is the official first day of winter so tomorrow its gonna be cooler maybe low seventies
Save Da Wave
