1997 Ford Crown Victoria CNG

4.6L 8-cyl · 4-speed automatic · RWD

Natural gasCNGLarge Cars

Official EPA record #13631 from FuelEconomy.gov · data 2026-07-26 · every assumption below is yours to edit. How this is computed

Per month

$166.45

Per year

$1,997

Per mile

16.6¢/mi

5-year total

$9,985

sedan body style — not this exact model

Notes & official EPA estimate

674.8 GGE of natural gas / yearnatural gas @ $2.96/GGEAt $3.96/GGE: $222.68/mo

A mile road trip costs about $49.80 in energy.

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

Official FuelEconomy.gov estimate: $2,450/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 1997 Ford Crown Victoria CNG costs about $166.45 per month in fuel — $1,997 per year, 16.6¢/mi, $9,985 over five years.Assumptions are editable below. Prices as of July 24, 2026 · EPA vehicle record #13631. EPA figures are laboratory estimates; real-world cost varies with driving conditions, weather, and where you buy energy.

Official EPA efficiency

Measure	Value
City miles per GGE	15
Highway miles per GGE	23
Combined miles per GGE	18

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

Official EPA estimates

Estimate	Value
Official annual fuel cost (15,000 mi/yr)	$2,450/yr
Tailpipe CO₂	391 g/mi
EPA smog rating	not published

Source: U.S. EPA / DOE FuelEconomy.gov, vehicle record #13631 (record updated 2013-01-01). Snapshot processed 2026-07-26; page data last changed 2013-01-01.

View this record on FuelEconomy.gov

Related configurations

Same year, same family

Adjacent model years