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View Poll Results: Report your average MPG
Less than 12 MPG 2 5.26%
13-15 MPG 5 13.16%
16-18 MPG 12 31.58%
19-21 MPG 10 26.32%
22-24 MPG 4 10.53%
Greater than 25 MPG 5 13.16%
Voters: 38. You may not vote on this poll

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Old 07-04-2016   #51
Hog
 
Join Date: Jul 2010
Location: Woodstock, Ontario, Canada
Posts: 1,275
Default Re: Your Mileage May Vary
The only C4 Corvette listed that got the gas guzzler tax (according to the EPA source)was the Callaway twin Turbo for 1990 and 1991 model years, listed under the Callaway company as the manufacturer.
For model year 1994, there not one single GM made car that is listed to get the gas guzzler tax.
MY1993
GENERAL MOTORS CAPRICE 350cid/8 cylinders (Police Package)
GENERAL MOTORS ALLANTE 279cid/8 cylinders
GENERAL MOTOR COMMERCIAL CHASSIS 290cid/8 cylinders
MY1992
GENERAL MOTORS CAPRICE 350cid/8 cylinders (Police Package)
GENERAL MOTORS ALLANTE 279cid/8 cylinders
GENERAL MOTOR COMMERCIAL CHASSIS 290cid/8 cylinders
MY1991
CALLAWAY CALLAWAY TWIN-TURBO CORVETTE 350cid/8 cylinders
GENERAL MOTORS BROUGHAM 350cid/8 cylinders
GENERAL MOTORS CAPRICE 350cid/8 cylinders (Police Package)
GENERAL MOTORS ALLANTE 279cid/8 cylinders
GENERAL MOTOR COMMERCIAL CHASSIS 290cid/8 cylinders
MY1990
GENERAL MOTORS BROUGHAM 350cid/8 cylinders
GENERAL MOTORS CAPRICE 350cid/8 cylinders (Police Package)
GENERAL MOTORS ALLANTE 273cid/8 cylinders
GENERAL MOTOR COMMERCIAL CHASSIS 273cid/8 cylinders
CALLAWAY CALLAWAY TWIN-TURBO CORVETTE 350cid/8 cylinders
MY1989
GENERAL MOTORS CAPRICE 350cid/8 cylinders (Police Package)
GENERAL MOTORS ALLANTE 273cid/8 cylinders
MY1988
GENERAL MOTORS CAPRICE 350cid/8 cylinders (Police Package)
MY1987
GENERAL MOTORS CAPRICE 350cid/8 cylinders (Police Package)
MY1986
GENERAL MOTORS CAPRICE WAGON 305cid/8 cylinders
GENERAL MOTORS CAPRICE 350cid/8 cylinders (Police Package)
GENERAL MOTORS PARISIENNE WAGON 305/8 cylinders
Here is the EPA document for perusal.
https://www3.epa.gov/fueleconomy/guzzler/420b06006.pdf
From the EPA website
https://www3.epa.gov/fueleconomy/guzzler/
I do remember that when the Chev group did the "ZR2 Big Doggie" C4 with a MARK 4 BBC with a TPI ECM that there was no way that a BBC equipped C4 would be marketable by GM as it competed with the upcoming LT5 equipped ZR1 car and that it would surely get tagged with the EPA gas guzzler tax and that was against policy.

I don't know why there is an apparent conflict, the EPA source I listed was a simple quick search. I have no idea as to its accuracy or validity.
Errors or omissions can occur in any format.
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ZR-1 Net Registry Member #1494
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Old 07-04-2016   #52
BigJohn
 
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Join Date: Feb 2012
Location: Ledyard,CT
Posts: 8,004
Default Re: Your Mileage May Vary
Cool, y'all want to race?
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Old 07-04-2016   #53
Corvettes White
 
Join Date: Dec 2003
Posts: 467
Default Re: Your Mileage May Vary
What is "The gold leaf book?". I have been following C4's since before there were any. And this is new to me. Thanks. George
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Old 07-04-2016   #54
BigJohn
 
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Join Date: Feb 2012
Location: Ledyard,CT
Posts: 8,004
Default Re: Your Mileage May Vary
We can put gold leaf on anything even chocolate cake!

Gold Leaf Book!
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File Type: jpg GoldbeatersGOLDLEAF.jpg (279.7 KB, 17 views)
Last edited by BigJohn; 07-05-2016 at 06:37 AM.
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Old 07-04-2016   #55
GOLDCYLON
 
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Join Date: May 2007
Location: Peoria, AZ
Posts: 9,153
Default Re: Your Mileage May Vary
Quote:
Originally Posted by Corvettes White View Post
What is "The gold leaf book?". I have been following C4's since before there were any. And this is new to me. Thanks. George
There is no gold leaf book that's is what BJ called it. I was referring to "The Heart of the Beast" by Anthony young. It's the best source of information to date that I am aware of of the LT5 program. It's worth the read
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GOLDCYLON - 91 ZR-1 #2014
GOLDCYLON - 90 ZR-1 #2794, 4L60e (Formerly Schrade's)
GOLDCYLON - 11 CTS-V


Arizona State Director




91 WHITE/BLACK #2014. 380 P&P&PCed,Ported Heads, Jeal Long tubes, Corsa Exhaust/FIKSE FM-5s /LED TLs, LED Headlights, Front Wilwood 6 piston narrowlite calipers and rear Wilwood caliper street shop mod,CNCed Coolant Pipes,TPI Cvr,Filter cover,Stainless Bolts, DRM/DOM PROM /ZFDOC mod build #102,DRLs,BMAD with stainless Debris Screen,Coplan Air Blaster, Pioneer APP Radio 4,Brey-Krause HB,Sub Bar,Fire extinguisher seat mount,DRM Coilovers,LEDs everywhere,Compass mirror (orange),V1 DIC hidden display, Homelink sun visor, Carbon Fiber top x3 and APSIS Carbon Fiber interior, APSIS CF Steering Wheel/NAPA Leather, Banski trailing arms, Guldstrand front suspension,urethane bushings from Prothane (total suspension) ZFDoc drive shaft safety loop, raptor shift light (orange),AO engineering louver front plate, Console seat cushion, 96CE seats with black custom Sheepskins, ss billet catch can,Viper remote entry/alarm,Cragar Rear Louvers,LED side louver lights, Dewitts Radiator with SPAL fans and a Woods 160 T-Stat

90 RED/BLACK #2794. 4L60e Automatic Stage V by RPM Transmission, TCI Dedicated TCM, OBX Stainless Headers, Corsa Exhaust, SAN Secondaries and Haibeck PROM, Exotic Muscle Coil overs, LED Interior Lights, LED Tail Lights, LED Headlights, 94 Sport seats with black custom Sheepskins , Cragar rear louvers, GS Front calipers, Banski Trailing arms, APSIS Carbon Fiber steering wheel, Front and Rear Baer Eradispeeds, DRLs, Guldstrand front suspension,urethane bushings from Prothane (total suspension), Dewitt's Raditor with Dual SPAL fans and a Haibeck 170 T-Stat

11 RED/GREY CTS-V
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Old 07-04-2016   #56
GOLDCYLON
 
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Join Date: May 2007
Location: Peoria, AZ
Posts: 9,153
Default Re: Your Mileage May Vary
Quote:
Originally Posted by Hog View Post
The only C4 Corvette listed that got the gas guzzler tax (according to the EPA source)was the Callaway twin Turbo for 1990 and 1991 model years, listed under the Callaway company as the manufacturer.
For model year 1994, there not one single GM made car that is listed to get the gas guzzler tax.
MY1993
GENERAL MOTORS CAPRICE 350cid/8 cylinders (Police Package)
GENERAL MOTORS ALLANTE 279cid/8 cylinders
GENERAL MOTOR COMMERCIAL CHASSIS 290cid/8 cylinders
MY1992
GENERAL MOTORS CAPRICE 350cid/8 cylinders (Police Package)
GENERAL MOTORS ALLANTE 279cid/8 cylinders
GENERAL MOTOR COMMERCIAL CHASSIS 290cid/8 cylinders
MY1991
CALLAWAY CALLAWAY TWIN-TURBO CORVETTE 350cid/8 cylinders
GENERAL MOTORS BROUGHAM 350cid/8 cylinders
GENERAL MOTORS CAPRICE 350cid/8 cylinders (Police Package)
GENERAL MOTORS ALLANTE 279cid/8 cylinders
GENERAL MOTOR COMMERCIAL CHASSIS 290cid/8 cylinders
MY1990
GENERAL MOTORS BROUGHAM 350cid/8 cylinders
GENERAL MOTORS CAPRICE 350cid/8 cylinders (Police Package)
GENERAL MOTORS ALLANTE 273cid/8 cylinders
GENERAL MOTOR COMMERCIAL CHASSIS 273cid/8 cylinders
CALLAWAY CALLAWAY TWIN-TURBO CORVETTE 350cid/8 cylinders
MY1989
GENERAL MOTORS CAPRICE 350cid/8 cylinders (Police Package)
GENERAL MOTORS ALLANTE 273cid/8 cylinders
MY1988
GENERAL MOTORS CAPRICE 350cid/8 cylinders (Police Package)
MY1987
GENERAL MOTORS CAPRICE 350cid/8 cylinders (Police Package)
MY1986
GENERAL MOTORS CAPRICE WAGON 305cid/8 cylinders
GENERAL MOTORS CAPRICE 350cid/8 cylinders (Police Package)
GENERAL MOTORS PARISIENNE WAGON 305/8 cylinders
Here is the EPA document for perusal.
https://www3.epa.gov/fueleconomy/guzzler/420b06006.pdf
From the EPA website
https://www3.epa.gov/fueleconomy/guzzler/
I do remember that when the Chev group did the "ZR2 Big Doggie" C4 with a MARK 4 BBC with a TPI ECM that there was no way that a BBC equipped C4 would be marketable by GM as it competed with the upcoming LT5 equipped ZR1 car and that it would surely get tagged with the EPA gas guzzler tax and that was against policy.

I don't know why there is an apparent conflict, the EPA source I listed was a simple quick search. I have no idea as to its accuracy or validity.
Errors or omissions can occur in any format.
I have no idea either Paul far be it from me to debate the Vice President of GM who was quoted in the book that he said to send the L98 to Lotus since it could not beat their guzzler tax. Who the hell really knows. I have moved on
__________________
GOLDCYLON - 91 ZR-1 #2014
GOLDCYLON - 90 ZR-1 #2794, 4L60e (Formerly Schrade's)
GOLDCYLON - 11 CTS-V


Arizona State Director




91 WHITE/BLACK #2014. 380 P&P&PCed,Ported Heads, Jeal Long tubes, Corsa Exhaust/FIKSE FM-5s /LED TLs, LED Headlights, Front Wilwood 6 piston narrowlite calipers and rear Wilwood caliper street shop mod,CNCed Coolant Pipes,TPI Cvr,Filter cover,Stainless Bolts, DRM/DOM PROM /ZFDOC mod build #102,DRLs,BMAD with stainless Debris Screen,Coplan Air Blaster, Pioneer APP Radio 4,Brey-Krause HB,Sub Bar,Fire extinguisher seat mount,DRM Coilovers,LEDs everywhere,Compass mirror (orange),V1 DIC hidden display, Homelink sun visor, Carbon Fiber top x3 and APSIS Carbon Fiber interior, APSIS CF Steering Wheel/NAPA Leather, Banski trailing arms, Guldstrand front suspension,urethane bushings from Prothane (total suspension) ZFDoc drive shaft safety loop, raptor shift light (orange),AO engineering louver front plate, Console seat cushion, 96CE seats with black custom Sheepskins, ss billet catch can,Viper remote entry/alarm,Cragar Rear Louvers,LED side louver lights, Dewitts Radiator with SPAL fans and a Woods 160 T-Stat

90 RED/BLACK #2794. 4L60e Automatic Stage V by RPM Transmission, TCI Dedicated TCM, OBX Stainless Headers, Corsa Exhaust, SAN Secondaries and Haibeck PROM, Exotic Muscle Coil overs, LED Interior Lights, LED Tail Lights, LED Headlights, 94 Sport seats with black custom Sheepskins , Cragar rear louvers, GS Front calipers, Banski Trailing arms, APSIS Carbon Fiber steering wheel, Front and Rear Baer Eradispeeds, DRLs, Guldstrand front suspension,urethane bushings from Prothane (total suspension), Dewitt's Raditor with Dual SPAL fans and a Haibeck 170 T-Stat

11 RED/GREY CTS-V
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Old 08-12-2020   #57
Bradjon
 
Join Date: Apr 2020
Location: Ridgecrest ca
Posts: 71
Default Re: Your Mileage May Vary
I average 26/28onthd freeway and 18 around town
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Old 08-12-2020   #58
davidijaxson
 
Join Date: Jan 2020
Location: Dallas, TX
Posts: 92
Default Re: Your Mileage May Vary
I get around 15 in town and maybe 18 or 19 on the highway. We can't get any pure gas in Dallas so I don't know what effect that has on the mileage.
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Old 08-12-2020   #59
ram_g
 
Join Date: Jun 2020
Location: Houston, TX
Posts: 183
Default Re: Your Mileage May Vary
Quote:
Originally Posted by davidijaxson View Post
We can't get any pure gas in Dallas
Depending on where specifically you are it may not be that far away. There are several Buc-ees in a ring around Dallas (and Houston, FWIW) that carry Ethanol free gas. You may have to drive 30 miles or so, but that's what I do to get Ethanol free gas near Houston.

Just BTW, I've been running 92 octane Buc-ees Ethanol Free and I get roughly the same mileage as you, although I've only gone through 2 tankfuls so far so too early to tell.
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