What MPG do you get?
Drifting
Joined: Mar 2005
Posts: 1,806
Likes: 3
From: Burlington WI
Originally Posted by Scottys78
Ok….. Not to sound stupid but, how do you know what mpg you are getting? 
2. Set the trip odometer to 0
3. Drive around until you need gas (no particular destination is OK)
4. Fill er up
5. How many Gallons did it take?
6. Look at the odometer
7. How many miles did you go?
8. Miles divided by gallons = MPG
EG: 300 miles / 15 Gallons = 20 MPG
but only if I coast a lot and it's mostly downhill...
Le Mans Master
Joined: Oct 2001
Posts: 6,798
Likes: 25
From: Pine Bluff Arkansas
St. Jude Donor '08-'09-'10-'11-'12-'13-'14-'15-'16-'17-'18-‘19-'20-'21
Originally Posted by Buzzardz_vette
My first long trip with the finished engine was to Carlisle and I avg'd about 19 MPG (18.8). How does this compare with other vettes?
I have the stock 350 CSB in my 76. It has an Edelbrock Performer carb on a Professional Products Cylone Plus intake and a Crane Cam (262 int./268 exh; 0.446 int./0.459 exh. lift), March underdrive pulleys; top rebuild with big valves.
I have the stock 350 CSB in my 76. It has an Edelbrock Performer carb on a Professional Products Cylone Plus intake and a Crane Cam (262 int./268 exh; 0.446 int./0.459 exh. lift), March underdrive pulleys; top rebuild with big valves.
Le Mans Master
Joined: Aug 2005
Posts: 7,009
Likes: 11
From: Philadelphia, sub burbs Wynnewood, PA
Originally Posted by fl_rider
1. Start with a full tank
2. Set the trip odometer to 0
3. Drive around until you need gas (no particular destination is OK)
4. Fill er up
5. How many Gallons did it take?
6. Look at the odometer
7. How many miles did you go?
8. Miles divided by gallons = MPG
EG: 300 miles / 15 Gallons = 20 MPG
but only if I coast a lot and it's mostly downhill...
2. Set the trip odometer to 0
3. Drive around until you need gas (no particular destination is OK)
4. Fill er up
5. How many Gallons did it take?
6. Look at the odometer
7. How many miles did you go?
8. Miles divided by gallons = MPG
EG: 300 miles / 15 Gallons = 20 MPG
but only if I coast a lot and it's mostly downhill...
Drifting
Joined: Nov 2001
Posts: 1,469
Likes: 6
From: 68 427 4.11s Roadster
Take a look at my list. hose are actual figures from tank to tank.
If I did it that way then I choose 31 mpg. Doing a single tank of gas is really loose on being accurate.
This method also requires an accurate speedo and with non 70 series tires its off something. I don't know how much? Any solid numbers on that?
If I did it that way then I choose 31 mpg. Doing a single tank of gas is really loose on being accurate.
This method also requires an accurate speedo and with non 70 series tires its off something. I don't know how much? Any solid numbers on that?
Pro
Joined: Apr 2005
Posts: 603
Likes: 2
From: Illinois, USA
I'm getting about 14.6 on average, and I use software to keep track of it (called Automotive Wolf). I don't have a lot of data to generate a "decent" average, but for some reason I get the feeling the value is low.
I'm running a 4spd L48 1977.
Brian.
I'm running a 4spd L48 1977.
Brian.
Former Vendor
Joined: Apr 2002
Posts: 534
Likes: 2
From: Cookeville TN
A Keisler 5 or 6 speed would sure help with mileage!
A Keisler 5 or 6 speed would sure help with mileage! 
A 25% increase in mileage ads up fast at $3.00 / gallon!
You'd have to buy gas at $2.25 (25% less) to have the same Miles Per Dollar (MP$) with a 4 speed!
... so if you are saving an equivalent of 75 cents per gallon, a $2,995 TKO600 would pay for itself in 4000 miles
That would be a good way to explain it to your wife. You're saving money by buying a Keisler 5 speed! If you drive enough you could save enough to retire or buy a really nice crate motor 
Robert at Keisler
423-773-9789
A 25% increase in mileage ads up fast at $3.00 / gallon!
You'd have to buy gas at $2.25 (25% less) to have the same Miles Per Dollar (MP$) with a 4 speed!
... so if you are saving an equivalent of 75 cents per gallon, a $2,995 TKO600 would pay for itself in 4000 miles
That would be a good way to explain it to your wife. You're saving money by buying a Keisler 5 speed! If you drive enough you could save enough to retire or buy a really nice crate motor Robert at Keisler
423-773-9789
Instructor
Joined: Jan 2005
Posts: 235
Likes: 1
From: West Seneca New York
I get around 15 city. And around 20 mpg hwy., at speeds of 75-80 mph with the '81. And with the A/C on.
The engine is a 350 w/Q-jet, LT4 HotCam,Vortec heads,full length headers,true duals w/cats. Richmond 4 spd., 3.08 rearend.
Darryl
The engine is a 350 w/Q-jet, LT4 HotCam,Vortec heads,full length headers,true duals w/cats. Richmond 4 spd., 3.08 rearend.
Darryl
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Thread Starter
Melting Slicks
Joined: Apr 2005
Posts: 2,045
Likes: 4
From: Yorktown VA
NCM Sinkhole Donor
Originally Posted by Sarge81
I get around 15 city. And around 20 mpg hwy., at speeds of 75-80 mph with the '81. And with the A/C on.
The engine is a 350 w/Q-jet, LT4 HotCam,Vortec heads,full length headers,true duals w/cats. Richmond 4 spd., 3.08 rearend.
Darryl
The engine is a 350 w/Q-jet, LT4 HotCam,Vortec heads,full length headers,true duals w/cats. Richmond 4 spd., 3.08 rearend.
Darryl
Seems you get better gas milage.
Thread Starter
Melting Slicks
Joined: Apr 2005
Posts: 2,045
Likes: 4
From: Yorktown VA
NCM Sinkhole Donor
Originally Posted by Robert Hall - Keisler Sales
A Keisler 5 or 6 speed would sure help with mileage!
A 25% increase in mileage ads up fast at $3.00 / gallon!
You'd have to buy gas at $2.25 (25% less) to have the same Miles Per Dollar (MP$) with a 4 speed!
... so if you are saving an equivalent of 75 cents per gallon, a $2,995 TKO600 would pay for itself in 4000 miles That would be a good way to explain it to your wife. You're saving money by buying a Keisler 5 speed! If you drive enough you could save enough to retire or buy a really nice crate motor
Robert at Keisler
423-773-9789
A 25% increase in mileage ads up fast at $3.00 / gallon!
You'd have to buy gas at $2.25 (25% less) to have the same Miles Per Dollar (MP$) with a 4 speed!
... so if you are saving an equivalent of 75 cents per gallon, a $2,995 TKO600 would pay for itself in 4000 miles
That would be a good way to explain it to your wife. You're saving money by buying a Keisler 5 speed! If you drive enough you could save enough to retire or buy a really nice crate motor Robert at Keisler
423-773-9789
Thread Starter
Melting Slicks
Joined: Apr 2005
Posts: 2,045
Likes: 4
From: Yorktown VA
NCM Sinkhole Donor
Originally Posted by PortDawg
MPG ? Who cares...it's a Vette...!
I just like to know how my vette is operating compared to others.
Melting Slicks
Joined: Nov 2002
Posts: 2,231
Likes: 7
From: Fort Pierce Florida
My '82 gets about 20 mpg on the highway and 15 mpg around town with a stroker motor, aftermarket EFI, 4L60 tranny, 3.45:1 gears, and a heavy foot.
I can't wait to see what the '72 will get with a maggie blown LS6 with the 6 speed tremec and 3.45:1 gears.
I can't wait to see what the '72 will get with a maggie blown LS6 with the 6 speed tremec and 3.45:1 gears.
Intermediate
Joined: Jan 2005
Posts: 45
Likes: 1
I get 12-14 around town & 16-18 cruising. It went up after I installed the TKO-600 from Chevy 5 speed. Running a 454 W/3.70 rear. Using an Edelboock Performer 750. Switched to a speed demom 750 double pumper & the mileage went down 20%..., but the performace was much better.
Melting Slicks
Joined: Feb 2005
Posts: 2,277
Likes: 0
From: Gloucester Va
St. Jude Donor '05
Originally Posted by Buzzardz_vette
Leave it to PortDawg to state the obvious.. I just like to know how my vette is operating compared to others.
I just like to know how my vette is operating compared to others.