What does your MPG mark say?
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Joined: Jul 2009
Posts: 84
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From: Cock-A-Doodle-Do
What does your MPG mark say?
Hi,
I just got a Corvette 95, previously mentioned here, when I first got it it said 15mpg.
And I drove it home primarily on the highway. It should be more?!
So I did the basic maintenance stuff, like changing oil, coolant, air filter.
I drove it today about 30 miles, in both city and highway...and when I got home, I checked the dash...it said 17.2mpg.
Is this normal, or low still?
Most of you said, I should just ignore the electronics - and test the MPG the old fashioned way, total miles driven divided by how many gallons pumped.
Let me know, thanks
---lawrence
I just got a Corvette 95, previously mentioned here, when I first got it it said 15mpg.
And I drove it home primarily on the highway. It should be more?!
So I did the basic maintenance stuff, like changing oil, coolant, air filter.
I drove it today about 30 miles, in both city and highway...and when I got home, I checked the dash...it said 17.2mpg.
Is this normal, or low still?
Most of you said, I should just ignore the electronics - and test the MPG the old fashioned way, total miles driven divided by how many gallons pumped.
Let me know, thanks
---lawrence
Thread Starter
Advanced
Joined: Jul 2009
Posts: 84
Likes: 0
From: Cock-A-Doodle-Do
But I drove it about equally in both city/highway today. So maybe that's why it says only 17.2mpg?
Burning Brakes
Joined: Apr 2007
Posts: 1,178
Likes: 15
From: Montreal Quebec
this is about average for 1/2 city/highway and some traffic driving you will hit almost 30 mpg at 55/60 mph and a very light foot
Le Mans Master
Joined: Mar 2004
Posts: 8,700
Likes: 298
From: Ft. Lauderdale Fl
Your average will depend upon many factors.....speed, traffic, level of tune your Vette is at.
(O2 sensors, plugs, wires etc.)
Some Forum members average in the mid 20's. I average just under 22 mpg.
(O2 sensors, plugs, wires etc.)
Some Forum members average in the mid 20's. I average just under 22 mpg.
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Burning Brakes
Joined: May 2009
Posts: 1,027
Likes: 1
From: Woodland CA
On my 96 with an automatic, I'm averaging 22 going 30 miles one way to work with stop and go traffic. If I get on the freeway, I can get 30. I was getting 24 going to work, but with the 10% ethanol its been reduced.
Le Mans Master
Joined: Mar 2004
Posts: 5,107
Likes: 171
From: Dublin CA
1985 with a ZZ4 as listed below, auto with 3.07 gears. Just made a trip to Seattle and back (up over mountains) averaged 28.4 MPG on the 1800 mile round trip. Running about 400+ HP. Currently averaging 21.8 MPG highway/town and improving as the engine is breaking in.
Instructor
Joined: Aug 2008
Posts: 132
Likes: 3
From: Springfield Ohio
Stock '94 LT1, averaged 27 last year with no resets... dropped to 22 after 2 Vet's parades in one day. 
(still no reset)
Reset after that and right back to 27MPG. I don't hammer the pedal, but I don't hold up any traffic either!
(still no reset)Reset after that and right back to 27MPG. I don't hammer the pedal, but I don't hold up any traffic either!
Melting Slicks
Joined: Dec 2008
Posts: 2,772
Likes: 64
From: Mystic CT
Mine (91 L98 auto) moves around constantly. If i change gears and go from OD toD it changes right away as does any change in throttle or going down hill. You should not have to reset it like it is taking some running avaerge. It is taking the duty cycle of injectors time injector flow to get the fuel delivered and pulses from the tailshaft of the transmission for distance traveled and doing the arithmatic to get fuel burned vs distance right away.. I will note up to 45 mph mine reads better in D rather than OD and the sounds and fels much happier about everythin and I have the 3.07 gears I can not imagine how sluggeist a car with 2.59 gears must feel..
Burning Brakes
Joined: Apr 2006
Posts: 1,218
Likes: 7
From: Burleson Texas
my first c4 (94 6spd 3.54 modified) averaged 31.3mpg highway and 24 city.
my lt4 6spd with 4.10 gets 28 highway and 19 city, 24 combined.
It has been tuned by pcmforless, and I think if the engine temps were closer to stock the mpg would be better. It also has the 'vortex raim air' which I feel has a filter too small for the engine and could be reducing the mpg factor as well.
my lt4 6spd with 4.10 gets 28 highway and 19 city, 24 combined.
It has been tuned by pcmforless, and I think if the engine temps were closer to stock the mpg would be better. It also has the 'vortex raim air' which I feel has a filter too small for the engine and could be reducing the mpg factor as well.
