1998 Chevy Silverado Ext. Cab K1500 5.7 - 12.7 MPG (50/50)
1988 GMC Suburban 2wd, 3.42 rear gears, 31.5 inch tall tires. Stock motor (350) and trans(700r4). 17.5 mpg hwy at 70-75 mph. 12-14 mpg 70/30 city/hwy. Before the gear and tire change, I was getting roughly 15 hwy and 10-12 city hwy mix
2005 4.8 reg cab, short bed, 5 spd, 4X4, wt model. k&n air filter, airbox mod, flowmaster 40 series muffler w/3" pipes, 4" tips, raised 1" in front, 50/50 hwy/city driving =19.3 avg mpg!
1990 Silverado 5.7L 2wd
2008 Silverado 4.3l V6 - 17.5 (more highway than city)
after K&N Air Filter - 17.7
2009 Ext. cab Z71 5.3L Flowmaster 40 series- 13.1 mpg avg (mostly city)
2007 silverado 5.3 L
14.5mpg 80% hwy 20% country road
loaded with work stuff and camper shell with ladders
planning to get a exhaust system
2007 silverado 5.3L Z71 16.5 mpg with K & N filter. Mainly city at about 45 mph.
When I got the truck it was at 15.7 avg economy and it has went up to 16.5 after K & N filter. drive mainly with a light foot on it as well.
1989 Chevrolet Suburban R2500 454 4.10s in the rear, otherwise completely stock.
Pure City Mileage 8MPG
Combined Mileage 10MPG
Highway Mileage 12-13MPG
Heavy Towing Mileage Short Distance(IE Around Town) 9 MPG
Heavy Towing Mileage Long Distance(IE Highway) 11MPG
1995 chevy silverdo c1500 2wd stock-17mpg 50/50
1995 chevy silverado 3in body 2 in level 33 in tires cai and dual muffler- 14mpg 50/50 winter(400+lbs. weight) we will see how it changes in summer