Gas Mileage......What are you getting??..... - The 1947 - Present Chevrolet & GMC Truck Message Board Network

knsmodels · 07-11-2005, 12:29 PM

Just curious what you guys are getting out of a gallon.....I just figured out mine with 350/4sp and 4:10's (33 inch tires)....was a mix of highway and around town got 12.6 mpg.....Lets here what your getting....Paul

Devil'S Ride · 07-11-2005, 02:58 PM

33's, 4:10's, 4 speed, and a 427 BBC net me about 8-9 mpg...all the time, uphill, downhill, loaded, unloaded, trailer no trailer, wind no wind..etc.....if I stick my foot in it, I have to change my calculator to gallons to the mile. But hey...I didnt build the thing to be good on fuel...its the massive amounts of power that I love!! I got a murdercycle for mileage!

ryan68 · 07-11-2005, 05:07 PM

I used to get 18.5 in my Suburban with 4", 33's and a mildly built 350, and drove alot of highway miles. Now I got 35's, 6" lift, 4.10 gears, all sorts of added weight for offroad stuff, tools, parts, fluids, axle shafts...... and I get around 11 in town with a 350 that is now built a little more.

see ten · 07-11-2005, 05:13 PM

I get right at 12.5 mpg out of the K10. That's on the highway in the left lane with not much else getting around me. That's a 350 with an edelbrock performer intake, comp cams roller tip rockers, comp cams off road cam, flex a lite 295 electric fans and the AC blowing on high! The motor is backed up with a 3 speed manual and 3.08 gears in the diffs. Tires are 33x12.50 Mickey Thompson Claws mounted on Mickey Thompson Challenger forged rims. I think the aggressive tread is probably costing me some MPG but hell they look great when it's sitting still.

Jason915 · 07-11-2005, 06:18 PM

I got 11.25 last 4th of July weekend pulling a small tent trailer and 3 dirtbikes in the bed aprox 1000-1200#'s and my foot in it to see how good my hill power was. In town if I shift my truck at 2K and get it in 4th without getting into the go pedal at all I can get 12MPG. My truck has a 4 speed (M465) 4.10's 33X12.5's and a nice running 355 290-300HP 350-360 FT#'s of torque. I love to drive this truck but can't drive it much because everytime I turn around I am putting gas into it.

knsmodels · 07-11-2005, 08:45 PM

Thanks for the replys...guess I am right on par.....Devil....I have a BBC Chevelle that is pushing 425hp @ the rear wheels.....I have to measure that one in gallons per mile too....(but it sure is fun gettn into that one).......Jason....I think we have virtually the same drivetrain....like you said fun to drive...station to station.....

blaserman · 07-12-2005, 03:03 AM

like it says at the bottom.

DirtyBurb86 · 07-12-2005, 07:55 AM

6 MPG for the Burb. Sux.

ryan68 · 07-12-2005, 09:16 AM

With all these oversized tires, did you guys recalibrate your speedometers, cause otherwise it will read slow and show you are getting less mpg than you actually are. I had mine recalibrated, it was off 15mph at 75mph, so I was showing 4/5th the distance I was actually going.

Jason915 · 07-12-2005, 11:08 AM

Yeah my speedo is right on at 55 MPH verified by GPS

toroflow · 07-12-2005, 12:18 PM

With this rig, 6 MPGs!!! UGH!!!!!

Jason915 · 07-12-2005, 05:07 PM

Quote:

Originally Posted by toroflow

With this rig, 6 MPGs!!! UGH!!!!!

That would scare the crap out of me to haul that camper with that lift and those huge tires.

**Daubs** · 07-12-2005, 03:47 PM

Wish I knew...my spedo is broke...when I got it the spedo was about 10-12 MPH off.

My '04 Big Block crew cab 4x4 is getting 10.5 city and 14 highway...which I'm very happy about.

Mudder · 07-12-2005, 06:30 PM

Don't know and don't wanna............

uncle_handsome · 07-12-2005, 08:10 PM

Toroflow, are those tires 40" tall or taller? How much lift do you have?

toroflow · 07-13-2005, 12:59 PM

12" lift (all spring in rear, no block) and 42" Swampers, duals in the rear, so the thing is stable as h*ll!!! Figure that to fit 15" wide rear tires the offsets on the rims (custom 16.5"x9.75"s) have to be pretty wild, thus making the track width wider in the rear (106"!! Whoops!! Sorry California Highway Patrol!!!

) This rigs also tows fantastic, as you don't even know anything is back there!! I tow an 8500 pound boat, and when I do tow the boat with one of my Suburbans, it pushes me around quite a bit. Not so with this dually. The 5.13 gears help also.

uncle_handsome · 07-13-2005, 10:37 PM

I like that last picture toroflow! Have you ever weighed your truck?

toroflow · 07-14-2005, 10:11 AM

7,500 pounds with a shell, and 11,500 with the 2 sotry condo on the back.

**special-K** · 07-16-2005, 08:01 AM

Gas mileage in my 4wds...they have that??Where can I get some?This builder has one of those new Datsun Titans that`s supposed to be a full-size truck(althuogh all I`ve seen are long cab/novelty bed with more space behind the axle than in front).He says he gets 15mpg.Don`t Full-size GMs get closer to twenty?And,you can haul more cargo than people and they make upfit equipment for them in case you want to use it as a truck.

solarus81 · 07-16-2005, 03:01 PM

Dont knock the Titan. My grandfather has one... the extended cab. He's got an 8 foot bed on it and it hauls better then my '70 402 GMC. It averages about 17 mpg no matter what you do to it. It's got an awsome 5 spd auto and a motor that wont quit.

BurnoutNova · 07-18-2005, 10:56 PM

Quote:

Originally Posted by solarus81

He's got an 8 foot bed on it and it hauls better then my '70 402 GMC..

then theres somthing wrong with your truck... the nut behind the steering wheel loose?

knsmodels · 07-19-2005, 10:00 AM

Quote:

Originally Posted by BurnoutNova

then theres somthing wrong with your truck... the nut behind the steering wheel loose?

**special-K** · 07-16-2005, 03:51 PM

I won`t knock Datsuns on their site if they`re around in 30 years.

shilo · 07-16-2005, 04:08 PM

Toroflow your truck rules.

mhood167 · 07-19-2005, 10:12 AM

1967 chev 283 400 turbo 373 = 12 miles per gallaon

07-11-2005, 12:29 PM	#1
knsmodels I make Models Join Date: May 2005 Location: Bucks, PA Posts: 626	Gas Mileage......What are you getting??..... Just curious what you guys are getting out of a gallon.....I just figured out mine with 350/4sp and 4:10's (33 inch tires)....was a mix of highway and around town got 12.6 mpg.....Lets here what your getting....Paul __________________ Click to see what I do 1972 LWB K10 350/4 sp 1968 SS Chevelle 396/tremac5spd

07-11-2005, 02:58 PM	#2
Devil'S Ride Registered User Join Date: Nov 2003 Location: Grants PassOregon Posts: 335	33's, 4:10's, 4 speed, and a 427 BBC net me about 8-9 mpg...all the time, uphill, downhill, loaded, unloaded, trailer no trailer, wind no wind..etc.....if I stick my foot in it, I have to change my calculator to gallons to the mile. But hey...I didnt build the thing to be good on fuel...its the massive amounts of power that I love!! I got a murdercycle for mileage! __________________ The Devil 1983 ONE TON 454/400/208 11" of lift on 44's

07-11-2005, 05:07 PM	#3
ryan68 Certified Chevy Man Join Date: Jan 2000 Location: Tucson, Arizona, United States Posts: 2,053	I used to get 18.5 in my Suburban with 4", 33's and a mildly built 350, and drove alot of highway miles. Now I got 35's, 6" lift, 4.10 gears, all sorts of added weight for offroad stuff, tools, parts, fluids, axle shafts...... and I get around 11 in town with a 350 that is now built a little more. __________________ 68 Chevy CST (327,TH400) 3/5 drop lots of fun stuff 71 Suburban 4x4 (350,TH350) 7" lift 37's, D44/14 bolt and other sorts of goodies, lockers front and rear, flexes 40", 895 RTI score Check out my web site!!! http://www.geocities.com/cst68chevy/

07-11-2005, 06:18 PM	#5
Jason915 Registered User Join Date: Jan 2005 Location: Colorado Springs Posts: 693	I got 11.25 last 4th of July weekend pulling a small tent trailer and 3 dirtbikes in the bed aprox 1000-1200#'s and my foot in it to see how good my hill power was. In town if I shift my truck at 2K and get it in 4th without getting into the go pedal at all I can get 12MPG. My truck has a 4 speed (M465) 4.10's 33X12.5's and a nice running 355 290-300HP 350-360 FT#'s of torque. I love to drive this truck but can't drive it much because everytime I turn around I am putting gas into it. __________________ 1971 GMC K1500 SWB Fleetside, 4" skyjacker softride and, 14 Bolt FF, HD Dana 44 4.10's 1970 K5 TBI conversion lifted etc SOLD 1968 C20 camper truck SOLD “To ban guns because criminals use them is to tell the innocent and law-abiding that their rights and liberties depend not on their own conduct, but on the conduct of the guilty and the lawless.” Jeff Snyder

07-11-2005, 08:45 PM	#6
knsmodels I make Models Join Date: May 2005 Location: Bucks, PA Posts: 626	Thanks for the replys...guess I am right on par.....Devil....I have a BBC Chevelle that is pushing 425hp @ the rear wheels.....I have to measure that one in gallons per mile too....(but it sure is fun gettn into that one).......Jason....I think we have virtually the same drivetrain....like you said fun to drive...station to station..... __________________ Click to see what I do 1972 LWB K10 350/4 sp 1968 SS Chevelle 396/tremac5spd

07-11-2005, 05:13 PM	#4
see ten WTB this ad Join Date: Sep 2004 Location: Lafayette Georgia Posts: 5,073	I get right at 12.5 mpg out of the K10. That's on the highway in the left lane with not much else getting around me. That's a 350 with an edelbrock performer intake, comp cams roller tip rockers, comp cams off road cam, flex a lite 295 electric fans and the AC blowing on high! The motor is backed up with a 3 speed manual and 3.08 gears in the diffs. Tires are 33x12.50 Mickey Thompson Claws mounted on Mickey Thompson Challenger forged rims. I think the aggressive tread is probably costing me some MPG but hell they look great when it's sitting still.

07-12-2005, 03:03 AM	#7
blaserman Senior Member Join Date: Nov 2004 Location: glen burnie md Posts: 447	like it says at the bottom. __________________ This is my best friend

07-12-2005, 07:55 AM	#8
DirtyBurb86 Narcissistic Prick Join Date: Dec 2004 Location: So Cal Posts: 87	6 MPG for the Burb. Sux. __________________ '86 GMC Suburban K2500, 3/4, 4x4, 350/400, 4" susp lift, 35" BFG M/Ts '96 Oldsmobile Aurora, Pure Luxury!!! '03 Mazda6 Sport, V6, 240hp Dead Stock

07-12-2005, 09:16 AM	#9
ryan68 Certified Chevy Man Join Date: Jan 2000 Location: Tucson, Arizona, United States Posts: 2,053	With all these oversized tires, did you guys recalibrate your speedometers, cause otherwise it will read slow and show you are getting less mpg than you actually are. I had mine recalibrated, it was off 15mph at 75mph, so I was showing 4/5th the distance I was actually going. __________________ 68 Chevy CST (327,TH400) 3/5 drop lots of fun stuff 71 Suburban 4x4 (350,TH350) 7" lift 37's, D44/14 bolt and other sorts of goodies, lockers front and rear, flexes 40", 895 RTI score Check out my web site!!! http://www.geocities.com/cst68chevy/

07-12-2005, 11:08 AM	#10
Jason915 Registered User Join Date: Jan 2005 Location: Colorado Springs Posts: 693	Yeah my speedo is right on at 55 MPH verified by GPS __________________ 1971 GMC K1500 SWB Fleetside, 4" skyjacker softride and, 14 Bolt FF, HD Dana 44 4.10's 1970 K5 TBI conversion lifted etc SOLD 1968 C20 camper truck SOLD “To ban guns because criminals use them is to tell the innocent and law-abiding that their rights and liberties depend not on their own conduct, but on the conduct of the guilty and the lawless.” Jeff Snyder

07-12-2005, 12:18 PM	#11
toroflow Registered User Join Date: May 2005 Location: Anaheim, CA Posts: 103	With this rig, 6 MPGs!!! UGH!!!!! Attached Images __________________ Ken '60 GMC 3/4T 4x4 '60 GMC Suburban 4x4 '64 GMC Suburban 4x4

07-12-2005, 03:47 PM	#13
Daubs Registered User Join Date: Jan 2005 Location: Eastern Nebraska Posts: 611	Wish I knew...my spedo is broke...when I got it the spedo was about 10-12 MPH off. My '04 Big Block crew cab 4x4 is getting 10.5 city and 14 highway...which I'm very happy about. __________________ '72 Chevy K-20 Crate 350, SM465, 4.10's

07-12-2005, 06:30 PM	#14
Mudder Registered User Join Date: Feb 2001 Location: East Central, MO Posts: 11,336	Don't know and don't wanna............

07-12-2005, 08:10 PM	#15
uncle_handsome Uncle H. is this cartoon Join Date: Nov 2004 Location: Mississauga, SC (I wish! lol!) Ontario Posts: 797	Toroflow, are those tires 40" tall or taller? How much lift do you have?

07-13-2005, 12:59 PM	#16
toroflow Registered User Join Date: May 2005 Location: Anaheim, CA Posts: 103	12" lift (all spring in rear, no block) and 42" Swampers, duals in the rear, so the thing is stable as h*ll!!! Figure that to fit 15" wide rear tires the offsets on the rims (custom 16.5"x9.75"s) have to be pretty wild, thus making the track width wider in the rear (106"!! Whoops!! Sorry California Highway Patrol!!! ) This rigs also tows fantastic, as you don't even know anything is back there!! I tow an 8500 pound boat, and when I do tow the boat with one of my Suburbans, it pushes me around quite a bit. Not so with this dually. The 5.13 gears help also. Attached Images __________________ Ken '60 GMC 3/4T 4x4 '60 GMC Suburban 4x4 '64 GMC Suburban 4x4



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07-13-2005, 10:37 PM	#17
uncle_handsome Uncle H. is this cartoon Join Date: Nov 2004 Location: Mississauga, SC (I wish! lol!) Ontario Posts: 797	I like that last picture toroflow! Have you ever weighed your truck?

07-14-2005, 10:11 AM	#18
toroflow Registered User Join Date: May 2005 Location: Anaheim, CA Posts: 103	7,500 pounds with a shell, and 11,500 with the 2 sotry condo on the back. __________________ Ken '60 GMC 3/4T 4x4 '60 GMC Suburban 4x4 '64 GMC Suburban 4x4

07-16-2005, 08:01 AM	#19
special-K Special Order Join Date: Nov 2004 Location: Mt Airy, MD Posts: 85,863	Gas mileage in my 4wds...they have that??Where can I get some?This builder has one of those new Datsun Titans that`s supposed to be a full-size truck(althuogh all I`ve seen are long cab/novelty bed with more space behind the axle than in front).He says he gets 15mpg.Don`t Full-size GMs get closer to twenty?And,you can haul more cargo than people and they make upfit equipment for them in case you want to use it as a truck. __________________ "BUILDING A BETTER WAY TO SERVE THE USA"......67/72......"The New Breed" GMC '67 C1500 Wideside Super Custom SWB: 327/M22/3.42 posi.........."The '67" (project) GMC '72 K2500 Wideside Sierra Custom Camper: 350/TH350/4.10 Power-Lok..."The '72" (rolling) Tim "Don't call me a redneck. I'm a rough cut country gentleman" R.I.P. ~ East Side Low Life ~ El Jay ~ 72BLUZ ~ Fasteddie69 ~ Ron586 ~ 67ChevyRedneck ~ Grumpy Old Man ~

07-16-2005, 03:01 PM	#20
solarus81 Registered User Join Date: Jul 2005 Location: Auburn, WA Posts: 4	Dont knock the Titan. My grandfather has one... the extended cab. He's got an 8 foot bed on it and it hauls better then my '70 402 GMC. It averages about 17 mpg no matter what you do to it. It's got an awsome 5 spd auto and a motor that wont quit.

07-16-2005, 03:51 PM	#23
special-K Special Order Join Date: Nov 2004 Location: Mt Airy, MD Posts: 85,863	I won`t knock Datsuns on their site if they`re around in 30 years. __________________ "BUILDING A BETTER WAY TO SERVE THE USA"......67/72......"The New Breed" GMC '67 C1500 Wideside Super Custom SWB: 327/M22/3.42 posi.........."The '67" (project) GMC '72 K2500 Wideside Sierra Custom Camper: 350/TH350/4.10 Power-Lok..."The '72" (rolling) Tim "Don't call me a redneck. I'm a rough cut country gentleman" R.I.P. ~ East Side Low Life ~ El Jay ~ 72BLUZ ~ Fasteddie69 ~ Ron586 ~ 67ChevyRedneck ~ Grumpy Old Man ~

07-16-2005, 04:08 PM	#24
shilo Registered User Join Date: Jun 2005 Location: Grand Junction , CO Posts: 602	Toroflow your truck rules. __________________ 71 swb 4x4, 37" Iroks, t400/205 496 77 CJ-7, Narrowed Dana 60 Lockrite, 14 Bolt Spool, 4.56 gears, 39.5" boggers. 360 t-18/d20

07-19-2005, 10:12 AM	#25
mhood167 Registered User Join Date: Apr 2005 Posts: 2	1967 chev 283 400 turbo 373 = 12 miles per gallaon

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