Based on data from 19 vehicles, 728 fuel-ups and 157,203 miles of driving, the 1999 Chevrolet Silverado 2500 gets a combined Avg MPG of 10.67 with a 0.16 MPG margin of error.

Any Engine Type 5.3L V8 GAS (1) 6.0L V8 GAS (15) V8 GAS (3) Any Body Style Standard Cab Pickup (1) Extended Cab Pickup (2) Any Submodel Base (4) LS (4) LT (8) Other (3)

Below you can see a distribution of the fuel-ups with 38 outliers (4.96%) removed.

Following shows the average MPG of each of the 19 vehicles in the system.

• Silverado

  1999 Chevrolet Silverado 2500 LT 6.0L V8 GAS Automatic 4 Speed
  Added Jul 2018 • 131 Fuel-ups

  Property of madmada

• 10.0 Avg MPG

• Dirty Diana

  1999 Chevrolet Silverado 2500 LT 6.0L V8 GAS Automatic 4 Speed
  Added Sep 2018 • 122 Fuel-ups

  Property of symtex

• 12.2 Avg MPG

• BOWSER

  1999 Chevrolet Silverado 2500 LT 6.0L V8 GAS Automatic 4 Speed
  Added Dec 2020 • 117 Fuel-ups

  Property of achevyman1956

• 9.9 Avg MPG

• truck

  1999 Chevrolet Silverado 2500 LS 6.0L V8 GAS Automatic 4 Speed Extended Cab Pickup
  Added Aug 2024 • 6 Fuel-ups

  Property of Albie71

• 9.8 Avg MPG

• My Silverado 2500

  1999 Chevrolet Silverado 2500 LS 6.0L V8 GAS Automatic 4 Speed
  Added Aug 2021 • 5 Fuel-ups

  Property of KDBLU

• 15.1 Avg MPG

• 1999 Chevy Silverado

  1999 Chevrolet Silverado 2500 6.0L V8 GAS Automatic 4 Speed
  Added Sep 2016 • 201 Fuel-ups

  Property of trn_usa

• 11.7 Avg MPG

• My Silverado 2500

  1999 Chevrolet Silverado 2500 LT 6.0L V8 GAS Automatic 4 Speed
  Added Jul 2017 • 3 Fuel-ups

  Property of jayss10

• 12.3 Avg MPG

• Z82 Pickup

  1999 Chevrolet Silverado 2500 LS 6.0L V8 GAS Automatic 4 Speed
  Added Sep 2016 • 44 Fuel-ups

  Property of mhayen01

• 11.5 Avg MPG

• Silverado

  1999 Chevrolet Silverado 2500 LT 6.0L V8 GAS Automatic 4 Speed
  Added Mar 2017 • 8 Fuel-ups

  Property of niemelanick

• 11.4 Avg MPG

• Chevy Silverado 2500

  1999 Chevrolet Silverado 2500 LS 6L GAS V8 Automatic 4 Extended Cab Pickup (3 Door)
  Added May 2015 • 24 Fuel-ups

  Property of K5TimR

• 13.7 Avg MPG

• My Silverado 2500

  1999 Chevrolet Silverado 2500 LT 6.0L V8 GAS Automatic 4 Speed
  Added Dec 2015 • 6 Fuel-ups

  Property of johntstevenson

• 16.8 Avg MPG

• Truck

  1999 Chevrolet Silverado 2500 6.0L V8 GAS Automatic 4 Speed Standard Cab Pickup
  Added Dec 2018 • 33 Fuel-ups

  Property of dirtrcr

• 14.2 Avg MPG

• Suburban

  1999 Chevrolet Silverado 2500 5.3L V8 GAS Automatic 4 Speed
  Added Aug 2016 • 4 Fuel-ups

  Property of msmith

• 9.9 Avg MPG

• Truck

  1999 Chevrolet Silverado 2500 LT 6.0L V8 GAS Automatic 4 Speed Extended Cab Pickup
  Added Jan 2025 • 157 Fuel-ups

  Property of fishingfooltim

• 10.5 Avg MPG

• Chevy

  1999 Chevrolet Silverado 2500 GAS V8
  Added Jun 2013 • 13 Fuel-ups

  Property of gdcpony

• 11.8 Avg MPG

• 99 Silverado

  1999 Chevrolet Silverado 2500 LT 6.0L V8 GAS 5967cc Automatic 4
  Added Jun 2014 • 8 Fuel-ups

  Property of FiedlerMike

• 14.5 Avg MPG

• Red Truck

  1999 Chevrolet Silverado 2500 GAS V8
  Added Apr 2014 • 4 Fuel-ups

  Property of jwmauidiver

• 20.2 Avg MPG

• Sheila

  1999 Chevrolet Silverado 2500 GAS V8
  Added Feb 2013 • 36 Fuel-ups

  Property of phoenixguy

• 11.7 Avg MPG

• Chevy

  1999 Chevrolet Silverado 2500 6.0L V8 GAS
  Added Nov 2017 • 4 Fuel-ups

  Property of fastrpms

• 11.4 Avg MPG