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.
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Thread Starter
Madison Wisconsin
Joined: Nov 2013
Posts: 504
Likes: 32
From: Madison Area WI
Wow, cool.
Thanks to all,
Nick
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