Discussion in 'Performance & Fuel' started by Springthing, Apr 12, 2009.
1998 K1500 ext cab 4.3 5spd stock 17.1 city driving Skip shifting staying below 2k
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.
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.
2001 Suburban 5.3 4X4 22" rims 12.5-13.5mpg
Did a trip this weekend with about 7200lbs worth of travel trailer and got 29 lit/100 km...
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
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.
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.
2002 GMC Savana 2500 5.7 3.73 4l80E stock work truck. I carry about 1000lbs. 8 city 11 highway
2011 silverado extended cab 4x4
i get about 13 in the city and about 15 on the highway
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