Didn’t Expect These Crazy MPG Figures!
Thread Starter
Pro
Joined: Dec 2009
Posts: 593
Likes: 2
From: Sub-Tropical Retirement Zone
Didn’t Expect These Crazy MPG Figures!
Last week I completed a 150 mile round trip from my home in Palm City, FL to Melbourne, FL. I have a ’99 FRC 6-speed with a little over 20k on the odo.
I just happened to gas up before I hit Route 95 for the trip when I thought… hey, I’ll check out the MPG while I drive the way I usually do on the interstate. After exiting the entrance ramp I “plugged” her in at 72 MPH on cruise in 6th gear. The speed limit is 70 MPH.
Starting mileage was: 23228 with a full tank of Shell premium. Gassed up when I returned with 23380 on the odo.
23380 -23228 = 152.0 miles
I was a little surprised when she topped off after 4.754 gallons
With my eyes bulging I divided 4.754 gallons in 152.000 miles…
Moved the decimal point over to the right three places 4754 divided into 152000.000
Dumbfounded when I had to double check to see that I got 31.973… 32 MPG!
Wow this 6-speed FRC rocks! I never expected to see figures like that from a vehicle like this.
This is really unbelievable compared to the muscle cars I was familiar with from the sixties. Tell me there are more of you out there getting crazy MPG figures with these cars. Tell me I’m not alone…
Semper Fi
Bob
I just happened to gas up before I hit Route 95 for the trip when I thought… hey, I’ll check out the MPG while I drive the way I usually do on the interstate. After exiting the entrance ramp I “plugged” her in at 72 MPH on cruise in 6th gear. The speed limit is 70 MPH.
Starting mileage was: 23228 with a full tank of Shell premium. Gassed up when I returned with 23380 on the odo.
23380 -23228 = 152.0 miles
I was a little surprised when she topped off after 4.754 gallons
With my eyes bulging I divided 4.754 gallons in 152.000 miles…
Moved the decimal point over to the right three places 4754 divided into 152000.000
Dumbfounded when I had to double check to see that I got 31.973… 32 MPG!
Wow this 6-speed FRC rocks! I never expected to see figures like that from a vehicle like this.
This is really unbelievable compared to the muscle cars I was familiar with from the sixties. Tell me there are more of you out there getting crazy MPG figures with these cars. Tell me I’m not alone…
Semper Fi
Bob
Instructor
Joined: Jan 2007
Posts: 247
Likes: 41
From: Blue Springs MO
It is pretty cool!! I got just over 31 mpg for my 1415 mile trip to Memphis, Nashville, and Bowling Green last year!!
2000 FRC, loaded with luggage, 70 mph mostly, caught in ruch hour twice, in July, so 100% AC usage.
2000 FRC, loaded with luggage, 70 mph mostly, caught in ruch hour twice, in July, so 100% AC usage.
Last edited by jjmoberg; Jul 19, 2010 at 09:22 AM.
Team Owner
Joined: May 1999
Posts: 22,830
Likes: 13
From: Columbus Ohio
CI 3-4, 8-9-10 Veteran
St. Jude Donor '06-'08-'10
My 03 convertible will average around 30-31 with the top up, drops by 2 - 3 MPG or so with the top down.
Got a best of 34.2 in my 92 coupe.
Got a best of 34.2 in my 92 coupe.
Thread Starter
Pro
Joined: Dec 2009
Posts: 593
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From: Sub-Tropical Retirement Zone
I enjoy driving my Vette... I don't baby her at all but the cruise control comes in handy on long interstate trips.
I never expected that kind of MPG doing 72. It blew my mind. I thought I was loosing it. Florida is mostly flat but hey, 32 with a Vette! I am amazed.
All right, Gary! Wwwoooiiieee! 34.2 MPG in your '92 coupe... that's gotta' be a high water mark for MPG with a Vette. Unbelievable.
It is good to hear that I am not alone. I can relax now.
Bob
I never expected that kind of MPG doing 72. It blew my mind. I thought I was loosing it. Florida is mostly flat but hey, 32 with a Vette! I am amazed.
All right, Gary! Wwwoooiiieee! 34.2 MPG in your '92 coupe... that's gotta' be a high water mark for MPG with a Vette. Unbelievable.
It is good to hear that I am not alone. I can relax now.
Bob
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Melting Slicks
Joined: Jun 2009
Posts: 2,915
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From: Jesuit Bend Louisiana
That is awesome but not unheard of with these cars. I did a trip from New orleans to Biloxi a couple months ago, averagd 28.3 MPG @ 70 ish give or take 5 MPH, AC on. Now I do have the 3.15 Gearing so I get a little less MPG that the 2.73.
You can keep your Freaking hybrids!
You can keep your Freaking hybrids!
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When I had my 6-speed '00 coupe, I consistently got 30+ mpg out on the highway. Even with my '03 auto, I get 27+ mpg. Not too bad for a car with high performance capabilities.
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From: Southwest Kansas
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26-28 with my A4 w 3.15.
Le Mans Master
Joined: May 2005
Posts: 6,366
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From: Fort Lauderdale, Florida
My modded and tuned '03 Z06 still does 30-32 mpg on the highway if I behave at almost legal cruise speeds. Still get 27-28 if not. This is the best secret about these cars. Non-vette owners never believe me, they always guess around 14-15 mpg on the highway. Most of them are driving bland cars that get less.
Le Mans Master
Joined: Sep 2007
Posts: 7,604
Likes: 8
From: Belleville Il
2000 FRC here,,and have gotten great mileage as well.On a 600+ mile trip from St.Louis area to Atlanta,,2 adults,,and packed to the gills with luggage,,and at times going a tad faster than you were(
) on everything from hills to mountains,,and still calculated close to 30 mpg!! Our club had an economy run a few months ago on 2lane highways and country roads,,and with a bit more prudent driving(and I kept to the speed limits,,not really babying it) I took 2nd place for C5's at 33.71,,first was 34.6. The amazing thing is I've also had it at the strip and turned a 13.08/110.24!! Faster and quicker than the monster motored 60's muscle cars,,and the fuel economy of modern econo cars!! Ya gotta love these cars!!!
) on everything from hills to mountains,,and still calculated close to 30 mpg!! Our club had an economy run a few months ago on 2lane highways and country roads,,and with a bit more prudent driving(and I kept to the speed limits,,not really babying it) I took 2nd place for C5's at 33.71,,first was 34.6. The amazing thing is I've also had it at the strip and turned a 13.08/110.24!! Faster and quicker than the monster motored 60's muscle cars,,and the fuel economy of modern econo cars!! Ya gotta love these cars!!!