MPG at 100mph
TECH Resident
Joined: Mar 2002
Posts: 847
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From: Kemah, Tx.
Re: MPG at 100mph I know this does not answer your question. But a 2002 ZO6 mileage breakdown is as follows:
60mph.....30mpg
70mph.....27mpg
80mph.....25mpg
90mph.....22mph
100mph....20mpg
FWIW, I have set the cruise at 130mph and was getting 16-17mpg!!!!!!!!!
60mph.....30mpg
70mph.....27mpg
80mph.....25mpg
90mph.....22mph
100mph....20mpg
FWIW, I have set the cruise at 130mph and was getting 16-17mpg!!!!!!!!!
TECH Resident
Joined: Mar 2002
Posts: 847
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From: Kemah, Tx.
Re: MPG at 100mph 
I had no idea that it dropped that fast, LOL time to slow down a bit. There are some roads around here that are long and relatively traffic free. I didn't leave the cruise on that long. I just wanted it to stabilize and see what the MPG was.
Launching!
Joined: Dec 2001
Posts: 284
Likes: 0
From: League City, Tx
Re: MPG at 100mph I just drove from san antonio to houston and back last week, and on the way from san antonio to houston, i ran between 90-100 all the way there(with the top off), and got around 23 mpg, and on the way back, i set the cruise on 70(with the top on), and got 31 mpg ...these cars get great mileage. This is on my 99 coupe with a few mods.(but still has the 2.73 geared auto
Daren
...these cars get great mileage. This is on my 99 coupe with a few mods.(but still has the 2.73 geared autoDaren
Trending Topics
Re: MPG at 100mph thats a nother reason why I love the M6.....
even with the 3.73s and the tops off, if I can set the cruse at 90mph, I will get over 400 miles on a full tank...thats 26.5 mpg....
even with the 3.73s and the tops off, if I can set the cruse at 90mph, I will get over 400 miles on a full tank...thats 26.5 mpg....
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TECH Enthusiast
Joined: Sep 2002
Posts: 612
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From: Brentwood, Ca
Re: MPG at 100mph Hey, that's not cool. I average out around 250/60 MPG on a full tank in the city and freeway. Is there something wrong with my rig? I wish I can do 400 miles on a full tank! 
TECH Fanatic
Joined: Aug 2002
Posts: 1,566
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From: Objects in mirror no longer matter.
Re: MPG at 100mph It doesn't drop that fast because you have a V8. The fact that horsepower consumed by drag increases in a cubic fashion in relation to vehicle speed has a lot more to do with the MPG 
Re: MPG at 100mph I averaged 78 mph from Atlanta to Bowling Green and 28 mpg. This included one stop north of Nashville for breakfast and one stop at a rest area.
Gas milage depends on several things.
Gas milage depends on several things.
Teching In
Joined: Oct 2002
Posts: 12
Likes: 0
From: Austin
Re: MPG at 100mph I've taken a couple 1000 mile trips (one way) and usually got 31mpg at 75mph. About to run the same trip in a couple days, but for the first time with all my mods. Hopefully I get the 475 miles in one tank again! 
TECH Addict
Joined: Nov 2001
Posts: 2,662
Likes: 1
From: LaConner WA
Re: MPG at 100mph I ran 55 miles at 160-165 mph, then 20 more miles at 130 mph, and the final 15 miles at 103 mph ( on cruise ) and averaged 7 1/2 mph for the whole 90 miles at last years SSCC.
TECH Fanatic
Joined: Nov 2001
Posts: 1,324
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From: Corona CA
Re: MPG at 100mph 18.6 MPG from Corona to San Jose at an average speed of 89mph, with a peak speed of 175, and 20 minutes of breaks and refueling. It was quite a ride. I left at 3am for a meeting that started at 8:00am, and arrived 45 minutes early. About 375mi.
