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06-17-2003, 06:01 PM
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#1 |
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Life is Good !
Join Date: Mar 2002
Location: Hollister, Ca.
Posts: 1,992
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Fuel mileage question
After reading a few differant post on fuel mileage. I wanted to know what kind of mileage Jenna's 71 was getting? So I started to keep track of the fuel and mileage. The only thing is I have never tryed or had to figure out what the fuel mileage is. could someone show me how? Here is the #'s I have.
12.2 gallons 15730 mileage 13.5 gallons 15908 mileage 11.8 gallons 16047 mileage 11.5 gallons 16191 mileage I have been trying to keep track but the wife fills up and forgets to write down the mileage.  I hope I am getting decent mileage, but I totally think it is pritty crappy.
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'72 Chevy C10 4x4 shortbed "Project" '71 Chevy C10 2wd longbed "partsrunner" '91 Chevy Burb 4x4 "kidrunner" '14 Honda Accord Sport "commuter" |
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06-17-2003, 06:17 PM
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#2 |
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Glowing since 1978
Join Date: Mar 2001
Location: Lusby,MD,USA
Posts: 532
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I assume that you filled the gas tank to full at each stop for gas. I took the total mileage traveled which would be 16191-15730=461 miles and it took 13.5+11.8+11.5=36.8 gallons of gas. So divide the miles/gallons and you get 12.52miles/gallon. You have to leave out the first 12.2 gallons because that just got you to the reference full mark on your gas tank to start determining miles per gallon.
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66 Chevy C30 Stakebody Dump, PS,PB, 327cu in 71 Corvette Coupe 454 4 speed 69 Chevy C20 Custom Camper |
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06-17-2003, 06:18 PM
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#3 |
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CCRider
Join Date: Feb 2000
Location: Olive Branch,MS,USA
Posts: 2,232
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You got 13.1, 11.7, 12.5 for an average of 12.4. Just divide miles traveled by gallons used.
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72 GMC Sierra SWB almost finished---- 84 Softail Olive Branch MS |
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06-17-2003, 06:18 PM
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#4 |
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Registered User
Join Date: Oct 2002
Location: Des Moines WA. (Kent, area)
Posts: 668
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9.4mpg? am i correct?
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70 chev c10 swb fleet 72 grill, sb 400, 2/4 drop. 68 chev c10 swb fleet Early classic 4/6 drop with 4wheel disc brakes 9"rear 67-8 buckets tilt and A/C Classic GM Truck Club of Washington . |
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06-17-2003, 06:22 PM
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#5 |
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Registered User
Join Date: Oct 2002
Location: Des Moines WA. (Kent, area)
Posts: 668
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shouldnt it be 461miles divided by49gal?
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70 chev c10 swb fleet 72 grill, sb 400, 2/4 drop. 68 chev c10 swb fleet Early classic 4/6 drop with 4wheel disc brakes 9"rear 67-8 buckets tilt and A/C Classic GM Truck Club of Washington . |
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06-17-2003, 06:23 PM
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#6 |
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Life is Good !
Join Date: Mar 2002
Location: Hollister, Ca.
Posts: 1,992
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ddsmith and tom hand, thank you for the input. I guess it is time to get out and do something to get the fuel milage up.
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'72 Chevy C10 4x4 shortbed "Project" '71 Chevy C10 2wd longbed "partsrunner" '91 Chevy Burb 4x4 "kidrunner" '14 Honda Accord Sport "commuter" |
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06-17-2003, 06:26 PM
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#7 |
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Glowing since 1978
Join Date: Mar 2001
Location: Lusby,MD,USA
Posts: 532
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crazy4chevs you have to leave out the first 12.2 gallons because that just got you to the reference full mark on your gas tank to start determining miles per gallon.
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66 Chevy C30 Stakebody Dump, PS,PB, 327cu in 71 Corvette Coupe 454 4 speed 69 Chevy C20 Custom Camper |
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06-17-2003, 06:33 PM
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#8 |
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its all about the +6 inches
Join Date: Jan 2001
Location: Hilliard Ohio
Posts: 2,693
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12.5 MPG if that is combined city/hwy...that isn't too awfull bad.
While some combos (even some stock ones) can get quite a bit more, most are lucky to bet past 10 or 11 (again...even stock). This even includes the inline engines. |
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06-17-2003, 06:58 PM
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#9 |
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Fabricate till you "puke"
Join Date: Jun 2002
Location: Ill
Posts: 9,402
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I think the Richmond overdrive upped me to about 10 mpg vs the 8.5 the 400 t/2400 stall verter was giving me......toys are fun, but not cheap! Im not too sure on your gearing(maybe missed it, kinda blind!). At anyrate, if that 1/2 ton truck is running 3.73 gears, the milage doesnt sound too bad. I had a very mild 327, witha 4spd(passenger), with 3.73 gears. The truck would get 12 mpg on the road running 60-62 mph.....it would pull a freakin mountain tho! not too bad a trade off in my book
 some of the best all around mileage i have seen has been on a mid 3's gear(the best of both worlds IMO).....they dont lug too hard in town, or rev too high on the road. Good luck,crazyL
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69 longhorn,4" chop,3/5 drop, 1/2 ton suspension/disc brakes,1 1/2" body drop,steel tilt clip, 5.3/Edelbrock rpm intake/600 carb, Hooker streetrod shorties,2 1/2" exhaust/ H pipe/50's Flows , 6 spd Richmond trans,12 bolt/ 3.40 gears.... |
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06-17-2003, 07:03 PM
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#10 |
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Formerly yellow72custom
Join Date: May 2001
Location: Austin, TX
Posts: 7,531
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12.5 is about what it should get, that is what i get on the highway, with a lead foot. Around town i get about 11mpg.
What are the specs on the motor? If it dosen't already have them, add a HEI distributor, some free flowing dual exhaust, and if you want too add a set of headers. It would also have more power with those upgrades.
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'72 Chevy C10 Mild 350/TH350/3.07. Ochre/White. Old high school ride. '70 GMC C2500 '62 327 4bbl/SM465/4.56-geared Dana 60. White/White. Project or parts truck. '97 Saturn SL DD. 1.9/5-speed. 40+ highway mpg |
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06-17-2003, 07:26 PM
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#11 |
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Registered User
Join Date: Mar 2003
Posts: 99
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Dang, congrats on your gas mileage. I have a 95 4x4 chevy that barely gets 15mpg. My 72 gets about 4 gallons to the mile, at least that is what it seems. I agree with crazy longhorn, our toys are extremely fun but definitely not cheap.
BTW Tom Hand is correct on the mileage calculations.
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