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03-29-2011, 12:39 AM #41
1998 K1500 ext cab 4.3 5spd stock 17.1 city driving Skip shifting staying below 2k
05-02-2011, 06:21 PM #42
03 Silverado K1500 reg cab long bed - 4.8 4x4 - auto trans - OEM size tires - no mods at the moment.
I run synthetic fluids in the crankcase, diffs, and transfer case. Stock fluid in the trans. 87 octane fuel.
50/50 I live in city, but take freeway everywhere.
I just verified via 3 150+mile calculations that I am getting 15.9 mpg.
I am planning fuel filter, tranny fluid (synth) and filter, CAI, catback, and diablo tuner in the next 3 months to improve HP and MPG. Will post results as they come in.
Last edited by jgalantine; 05-02-2011 at 06:22 PM. Reason: updated make/model/trim2003 Silverado 1500 4x4
05-28-2011, 09:19 PM #43
2011 2500 hd crew cab 4X4 6.0 lit. 600km (275 miles)trip mostly hwy @ 110 kph (69 mph) got 14.4 lit/100km (16.4mpg US).
5 in the truck and the back full of camping gear. Extang solid cover.
Last edited by jake's silverado; 05-28-2011 at 09:22 PM.
06-05-2011, 05:54 PM #44
- Join Date
- Jun 2011
- Kansas City, Missouri, United States
2001 Suburban 5.3 4X4 22" rims 12.5-13.5mpg
06-05-2011, 08:59 PM #45
06-09-2011, 02:43 PM #46
Truck: 2007 NBS Silverado 1500, Extended Cab 6' bed. 5.3l steel block (LY5, 'J' VIN) V8 with Active Fuel Management.
Upgrades: Synthetic oils. Spray On Bedliner. 3/4 ton truck 10 ply tires. I keep as little weight in as possible and don't accelerate too hard, nor do I speed.
MPG: 18.9 max, 17.5 avg, 13.1 min with 2/3 of the time on the interstate at 75mph. Calculated by miles driven divided by gallons pumped to a full tank. Most of the time I buy from Shell*Insert witty signature here*
06-14-2011, 05:52 PM #47
Just filled up yesterday and made 26.9 mpg. This is down from the same period last year when I made 27.1 mpg. And this is my first tank on my newly reprogrammed (for economy) ECU. 95% rural driving and 5 % highway.
07 Sierra Classic, 4.3 L. 5 spd. M/T
Tires inflated to sidewall max. pressure, skip shifting from 3rd to 5th when practical,
MSD Coil, under drive pulleys, headers, cat-back exhaust, Taylor plug wires, stock plugs, K&N FIPK, ScanGuageII, hypermiling driving techniques, Vararam TB insert, tonno cover. ECU tuned for economy.
Last edited by Goldie; 06-15-2011 at 07:29 PM. Reason: Added more info.
08-27-2011, 04:00 PM #48
- Join Date
- Aug 2011
2001 silverado 1500 standard cab shorted step side 4x4 z71 3" custom cat back. Flowmaster 40 series 3.5" tip. 15-17 mpg 60/40 city/highway if I stay out of it. 14-15 if I get after it even once or twice.
09-04-2011, 12:31 PM #49
- Join Date
- Sep 2011
2002 GMC Savana 2500 5.7 3.73 4l80E stock work truck. I carry about 1000lbs. 8 city 11 highway
09-04-2011, 06:44 PM #50
- Join Date
- May 2011
2011 silverado extended cab 4x4
i get about 13 in the city and about 15 on the highway
2011 Silverado (Ellie)
K&N Cold Air Intake
Gibson Extreme Dual Exhaust
Warn Bull Guard
BF Goodrich All Terrains
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