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Old 06-27-2002, 11:46 AM   #1
papa g
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Smile gas mileage in a suburban?

hi!!! i am new to this forum and i have a question. i just got an 85 c20 suburban, with the 454 4barrel carb. auto towing package etc, i do not know the axle ratio. what kind of gas mileage can i expect from it??? its got 130K on the odometer and immaculate. i appreciate all replys.
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Old 06-27-2002, 12:17 PM   #2
2nova2
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I think if you got 10 at any point you would be lucky
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Old 06-27-2002, 02:46 PM   #3
68 Suburban
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Buddy of mine had one and 8 mpg was all he could muster.
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Old 06-27-2002, 05:33 PM   #4
PushinPebbles
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I have a 88 burban W/throttle body fuel injection.............350/700R-4.............4x4 w/ 3.73's............I was told when i bought it , it got 18mpg's ..............hard to beleive but there are exceptions i guess
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67 C-10 SWB 355 built T-350 tranny hurst shifter 17x8in KMC's on michelins, clear tails and back up lights slammed**UPDATE i have decided on my bag setup and will post further info when i recieve all the parts
******************************
88 1/2 ton suburban 4x4 350/700R-4*having a 9 in lift w/ 38 in tires
4 12 inch Lightning Audios
******************************
87 silverado 3/4ton jacked up 10-12 inches black and rubberized bed coating 35 in michelans ******************************
Dad's truck
68 C-10 stepside, 468 BB, tubbed, weld wheels, Nason black,lots more
******************************
grand dads truck 68 C-10 stepside
fuel inj. 350/700R-4*soon in audi silver*
******************************
84 toyota pickup 22R 5 speed 2WD slammed, shaved and all the body lines filled w/ buickGN scoop,bout to be sprayed in 2003 mustang green metallic w/ silver flames
******************************
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"No fat chics, truck will scrape"
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Old 06-27-2002, 05:52 PM   #5
1970 CST Short Wide
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My new 02 Burb just got 18.9 with the cruise at 75 and the AC on, with 6 adults riding YAHOO
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Old 06-27-2002, 07:29 PM   #6
Wasted Income
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My '92 K1500 with 3.42s and 161K miles regularly gets between 16-18 on the highway (If I'm not always stomping on it to listen to the Flowmasters)
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Old 06-27-2002, 11:07 PM   #7
PushinPebbles
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lmao.............not bad for a 4x4 cinder block huh?...........my ride to high school........................now we have the money my dad wants to use it as a tow rig..................so now Its goin to be lifted 9 in. and have 38 in tires..........................little does he know that there is gonna be 4 10's in the back..............hehe.........it needs new carpet..............it smells like packing grease inside but im working on it...................wish me luck.......................
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Jack M.
67 C-10 SWB 355 built T-350 tranny hurst shifter 17x8in KMC's on michelins, clear tails and back up lights slammed**UPDATE i have decided on my bag setup and will post further info when i recieve all the parts
******************************
88 1/2 ton suburban 4x4 350/700R-4*having a 9 in lift w/ 38 in tires
4 12 inch Lightning Audios
******************************
87 silverado 3/4ton jacked up 10-12 inches black and rubberized bed coating 35 in michelans ******************************
Dad's truck
68 C-10 stepside, 468 BB, tubbed, weld wheels, Nason black,lots more
******************************
grand dads truck 68 C-10 stepside
fuel inj. 350/700R-4*soon in audi silver*
******************************
84 toyota pickup 22R 5 speed 2WD slammed, shaved and all the body lines filled w/ buickGN scoop,bout to be sprayed in 2003 mustang green metallic w/ silver flames
******************************
S/N=BIGGYTYME@aol.com
(hydros)
"No fat chics, truck will scrape"
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Old 06-28-2002, 11:33 AM   #8
jflem3
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mileage

my 71' 402 /400/3.54 w/ 10.50/16.5BFG AT's gets about 10 around toen and 11.5 on the highway

the 90' suburban 454/400 TBI 3.73 w 275/70/17 goodyear ATS's pretty much 10-11 everywhere.

an overdrive trans would pay big dividends. for the BB burbs.
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69 Camaro SS LT-1/6-spd
71 C-20custom deluxe burb 402/400
(gonna get back to it)
72 C-10base burb 350/3-spd
79-VW Scirocco GT-3 race car 2.0L/5-spd
02 chevy suburban LT Supercharged dropped on 22's
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Old 06-28-2002, 12:30 PM   #9
toms68cst
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We get around 10-12mpg mostly around-town mixed driving on our 90 350efi. I'm not sure about highway. I don't expect much bertter than 15-17mpg.
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Old 06-28-2002, 12:46 PM   #10
2nova2
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Hey guys papa g doesen't have a 350 or efi ! he has a 3/4 ton 454 Burb. So im sure he won't be getting 15-17 mpg. 454s don't pass to many gas stations but they sure can tow.
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64 Chevy II V8 Loaded Wagon
2004 Chevy 2500 HD

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