Originally Posted By: Blue_Goose
Looking for some real world mpg #'s from Silverado/Sierra 1500 owners that have the 5.3 engine.
I would not expect great numbers from around town but anything I have read has been people getting 10-14 mpg and that is including highway.
I drive 100 miles a day r/t almost 99% highway, just looking for some stats from people who actually own this vehicle....currently looking at with a 2000 Silverado and a 2004 Sierra 1500 SLE
Goose
I had a 2005 Silverado 1500( GMT800 ). It was an Extended Cab 4WD w/ the aluminum HO 5.3L( 310HP vs the standard iron block 295 - only available on EC's w/ 4WD ). It had 3.42's and 265/70R17's. I saw 14-15 MPG city, 17-18 MPG average for mixed driving, and usually 20-21 Highway with a best ever of just under 24 MPG. Hands down the best truck I ever owned for MPG. Sadly it was thrashed by a massive hail storm and the insurance company screwed me over like so many others in the area and it was not fixed properly so I didn't keep it long. Very nice truck though and the MPG was great.
Just for comparison sake in case you look at the newer Silverado's( GMT900's ). I replaced the 05 with a NBS 2007 Silverado 1500. It too was an Extended Cab Z71 4WD w/ 5.3L. It had 3.73's and 265/70R17's. Despite the AFM thhat was supposed to increase MPG the truck saw significantly worse MPG. Some of it is the 3.73's vs the 3.42's but not all. GM's AFM and Dodge's MDS just does NOT work on big heavy trucks. IT may in theory but not in the real world. The MPG was 1-2 MPG lower across the board for the 07 Silverado vs the 05 I had. I only broke 20 MPG highway with it once as I recall and that was barely.
Looking for some real world mpg #'s from Silverado/Sierra 1500 owners that have the 5.3 engine.
I would not expect great numbers from around town but anything I have read has been people getting 10-14 mpg and that is including highway.
I drive 100 miles a day r/t almost 99% highway, just looking for some stats from people who actually own this vehicle....currently looking at with a 2000 Silverado and a 2004 Sierra 1500 SLE
Goose
I had a 2005 Silverado 1500( GMT800 ). It was an Extended Cab 4WD w/ the aluminum HO 5.3L( 310HP vs the standard iron block 295 - only available on EC's w/ 4WD ). It had 3.42's and 265/70R17's. I saw 14-15 MPG city, 17-18 MPG average for mixed driving, and usually 20-21 Highway with a best ever of just under 24 MPG. Hands down the best truck I ever owned for MPG. Sadly it was thrashed by a massive hail storm and the insurance company screwed me over like so many others in the area and it was not fixed properly so I didn't keep it long. Very nice truck though and the MPG was great.
Just for comparison sake in case you look at the newer Silverado's( GMT900's ). I replaced the 05 with a NBS 2007 Silverado 1500. It too was an Extended Cab Z71 4WD w/ 5.3L. It had 3.73's and 265/70R17's. Despite the AFM thhat was supposed to increase MPG the truck saw significantly worse MPG. Some of it is the 3.73's vs the 3.42's but not all. GM's AFM and Dodge's MDS just does NOT work on big heavy trucks. IT may in theory but not in the real world. The MPG was 1-2 MPG lower across the board for the 07 Silverado vs the 05 I had. I only broke 20 MPG highway with it once as I recall and that was barely.