MPG test complete
Thread Starter
Madison Wisconsin
Joined: Nov 2013
Posts: 504
Likes: 32
From: Madison Area WI
MPG test complete
I just came back from a 1,200 mile mileage test of the C7 Z51.
I put 500 miles on the car to get it mostly past break in before the test.
I ran the car at speed limits in 100 mile tests.
Result, 27.4 average highway mileage.
Result did not vary much in any mode.
Eco mode was not the best millage mode.
Best 100 miles was 30.2 MPG.
Worst was 26.4 against a head wind.
Test was over mostly flat ground from Wisconsin to Kentucky and back.
I put 500 miles on the car to get it mostly past break in before the test.
I ran the car at speed limits in 100 mile tests.
Result, 27.4 average highway mileage.
Result did not vary much in any mode.
Eco mode was not the best millage mode.
Best 100 miles was 30.2 MPG.
Worst was 26.4 against a head wind.
Test was over mostly flat ground from Wisconsin to Kentucky and back.
Pro
Joined: Oct 2008
Posts: 606
Likes: 7
From: Nashville, TN
I just came back from a 1,200 mile mileage test of the C7 Z51.
I put 500 miles on the car to get it mostly past break in before the test.
I ran the car at speed limits in 100 mile tests.
Result, 27.4 average highway mileage.
Result did not vary much in any mode.
Eco mode was not the best millage mode.
Best 100 miles was 30.2 MPG.
Worst was 26.4 against a head wind.
Test was over mostly flat ground from Wisconsin to Kentucky and back.
I put 500 miles on the car to get it mostly past break in before the test.
I ran the car at speed limits in 100 mile tests.
Result, 27.4 average highway mileage.
Result did not vary much in any mode.
Eco mode was not the best millage mode.
Best 100 miles was 30.2 MPG.
Worst was 26.4 against a head wind.
Test was over mostly flat ground from Wisconsin to Kentucky and back.
Melting Slicks
Joined: May 2007
Posts: 3,269
Likes: 25
From: Simi Valley Ca
Your milage will improve greatly with more miles on the car. After about 1700 miles on the odometer, my MPG really started increasing substantially. At 2000 miles I was able to average over 30MPG where as on the same road I was seeing nearly 10% less not 500 miles sooner. I've compared 4 cylinders vs 8 cylinders in other modes and Eco does make a difference of at least 1-2MPG in cruise at 65-75MPH assuming you are able to hold 4 cylinder mode with cruise control on. I'm at about 2500 miles on the car now and MPG is still improving over the same stretch of highway that I travel every day.
I too have a Z51 7 Speed.
I too have a Z51 7 Speed.
Thread Starter
Madison Wisconsin
Joined: Nov 2013
Posts: 504
Likes: 32
From: Madison Area WI
MPG increases with miles driven
Your milage will improve greatly with more miles on the car. After about 1700 miles on the odometer, my MPG really started increasing substantially. At 2000 miles I was able to average over 30MPG where as on the same road I was seeing nearly 10% less not 500 miles sooner. I've compared 4 cylinders vs 8 cylinders in other modes and Eco does make a difference of at least 1-2MPG in cruise at 65-75MPH assuming you are able to hold 4 cylinder mode with cruise control on. I'm at about 2500 miles on the car now and MPG is still improving over the same stretch of highway that I travel every day.
I too have a Z51 7 Speed.
I too have a Z51 7 Speed.
+
Corvette Stories
The Best of Corvette for Corvette Enthusiasts
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
Top 10 Most Explosive Corvettes Ever Made: Power-to-Weight Ratio Ranked!
Joe Kucinski
150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter
Joe Kucinski
8 Coolest Corvette Pace Cars (and Replicas) of All Time
Verdad Gallardo
Drifting
Joined: Jul 2013
Posts: 1,726
Likes: 770
Thread Starter
Madison Wisconsin
Joined: Nov 2013
Posts: 504
Likes: 32
From: Madison Area WI
Wow, cool.
Thanks to all,
Nick
Tech Contributor
Joined: Jan 2006
Posts: 4,761
Likes: 240
From: Saint Louis MO
St. Jude Donor '14-'15
Melting Slicks
Joined: Apr 2005
Posts: 3,418
Likes: 1
From: Chicagoland Area IL
Tech Contributor
Joined: Jan 2006
Posts: 4,761
Likes: 240
From: Saint Louis MO
St. Jude Donor '14-'15
Drifting
Joined: May 2000
Posts: 1,760
Likes: 115
From: Tennessee