DriveCostCheck

2004 Chevrolet Silverado 2500 HD 2WD CNG

6.0L 8-cyl · 4-speed automatic · RWD

Natural gasCNGStandard Pickup Trucks 2WD

Official EPA record #20407 from FuelEconomy.gov · data 2026-07-26 · every assumption below is yours to edit. How this is computed

Per month

$301.98

Per year

$3,624

Per mile

30.2¢/mi

5-year total

$18,120

pickup body style — not this exact model
Notes & official EPA estimate
1,224.2 GGE of natural gas / yearnatural gas @ $2.96/GGEAt $3.96/GGE: $404.00/mo

  • Natural-gas MPG is measured in gasoline-gallon equivalents (GGE); the default price is the official national average per GGE.

Official FuelEconomy.gov estimate: $4,450/year — assumes 15,000 miles/year and EPA price assumptions. The figures above use your inputs instead.

Compare with another vehiclePrices: EPA national averages, Jul 24, 2026 — override anytime.
At 12,000 miles per year (55% city / 45% highway) with EPA national-average prices, this 2004 Chevrolet Silverado 2500 HD 2WD CNG costs about $301.98 per month in fuel — $3,624 per year, 30.2¢/mi, $18,120 over five years.Assumptions are editable below. Prices as of July 24, 2026 · EPA vehicle record #20407. EPA figures are laboratory estimates; real-world cost varies with driving conditions, weather, and where you buy energy.

Chevrolet Silverado: running costs for every model year →

Official EPA efficiency

MeasureValue
City miles per GGE9
Highway miles per GGE11
Combined miles per GGE10

Natural-gas economy is measured in gasoline-gallon equivalents (GGE), not gallons of gasoline.

Official EPA estimates

EstimateValue
Official annual fuel cost (15,000 mi/yr)$4,450/yr
Tailpipe CO₂703 g/mi
EPA smog rating (BIN 10)1/10

Source: U.S. EPA / DOE FuelEconomy.gov, vehicle record #20407 (record updated 2013-01-01). Snapshot processed 2026-07-26; page data last changed 2013-01-01.

View this record on FuelEconomy.gov — includes owner-shared real-world MPG for this vehicle.

Related configurations

Same year, same family

Adjacent model years