1984 Oldsmobile Delta 88

5.7L 8-cyl · 3-speed automatic

DieselDieselLarge Cars

Official EPA record #27073 from FuelEconomy.gov · data 2026-07-26 · every assumption below is yours to edit. How this is computed

Per month

$249.09

Per year

$2,989

Per mile

24.9¢/mi

5-year total

$14,945

sedan body style — not this exact model

Notes & official EPA estimate

582.7 gal of fuel / yeardiesel @ $5.13/galAt $6.13/gal: $297.65/mo

A mile road trip costs about $74.70 in energy.

Official FuelEconomy.gov estimate: $3,700/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 ($5.13/gal diesel), this 1984 Oldsmobile Delta 88 costs about $249.09 per month in diesel — $2,989 per year, 24.9¢/mi, $14,945 over five years.Assumptions are editable below. Prices as of July 24, 2026 · EPA vehicle record #27073. EPA figures are laboratory estimates; real-world cost varies with driving conditions, weather, and where you buy energy.

Official EPA efficiency

Measure	Value
City MPG	18
Highway MPG	25
Combined MPG	21

Official EPA estimates

Estimate	Value
Official annual fuel cost (15,000 mi/yr)	$3,700/yr
Tailpipe CO₂	485 g/mi
EPA smog rating	not published

Source: U.S. EPA / DOE FuelEconomy.gov, vehicle record #27073 (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