1998 Mitsubishi Diamante

US · Midsize Cars

The 1998 Mitsubishi Diamante is listed in the US market with gasoline power. Every figure below carries the source it came from, and anything our sources do not publish is left out rather than estimated.

Engine: 3.5L 6-cylinder (SOHC)
Power: Not available
Torque: Not available
Transmission: 4-speed automatic
Drivetrain: FWD
Fuel: Gasoline
Seating: Not available

Generic outline. Published dimensions for this vehicle are not available.

Specifications at a Glance

Key Performance & Dimensions

Units:

Engine / Powertrain

3.5L 6-cylinder (SOHC)

Power Output

Not available

Peak Torque

Not available

Combined Economy

18 MPG US (13.1 L/100 km) · EPA

Drivetrain

FWD

Transmission

AUTOMATIC

Capacity

Not available

Exterior Dimensions

Not available

Market: US·Switch units anytime to convert horsepower, torque, fuel economy, and dimensions.

Compare 1998 Mitsubishi Diamante ↗

Engine

Engine
Specification	Value	Source
Engine	3.5L 6-cylinder (SOHC)
Displacement	3.5 L
Cylinders	6
Fuel type	Gasoline	EPA fueleconomy.gov

Not available from our sources: Aspiration, Power, Torque.

Transmission and drivetrain

Transmission and drivetrain
Specification	Value	Source
Transmission	Automatic	EPA fueleconomy.gov
Gears	4
Drivetrain	FWD	EPA fueleconomy.gov

Fuel economy and range

Fuel economy and range
Specification	Value	Source
Combined	18 mpg (13.1 L/100 km)	EPA fueleconomy.gov
City	16 mpg (14.7 L/100 km)
Highway	23 mpg (10.2 L/100 km)

Not available from our sources: Electric range, Battery capacity.

Trims and configurations

1 configuration listed by our sources. Engines, drivetrains and fuel economy can differ between them.

3.5L · FWD · 4-speed automatic

Recalls

NHTSA lists 1 recall campaign for this model year. Last checked October 20, 2026.

04V428000: EQUIPMENT:OTHER:LABELS
CERTAIN PASSENGER VEHICLES FAIL TO CONFORM TO THE REQUIREMENTS OF FEDERAL MOTOR VEHICLE SAFETY STANDARD NO. 208, 'OCCUPANT CRASH PROTECTION.' THE BILINGUAL ENGLISH/SPANISH REMOVABLE AIR BAG WARNING LABELS AFFIXED TO THE DASH AND TO THE SUNVISOR DO NOT MEET THE SIZE REQUIREMENTS OF THE STANDARD.
Remedy: MITSUBISHI CARIBBEAN WILL MAIL A CUSTOMER NOTIFICATION LETTER CONTAINING A WRITTEN DESCRIPTION AND A GRAPHIC OF THE BI-LINGUAL DASHBOARD AIR BAG WARNING LABEL. IN ADDITION, ALL CURRENT 2000-2004 NATIVA OWNERS WILL ALSO RECEIVE…
Reported September 1, 2004. View on NHTSA

Data sources

EPA fueleconomy.gov · retrieved October 19, 2026 · US Government public data
NHTSA vPIC · retrieved October 19, 2026 · US Government public data

Source checked: October 19, 2026

Data verified: October 20, 2026

Specifications can vary by market, trim, configuration and production date. Confirm with the manufacturer before buying parts or making safety decisions. Report an error.

Related vehicles

1997 Mitsubishi Diamante
Gasoline
3.5L 6-cylinder (SOHC (FFS)) · FWD
19 mpg (12.4 L/100 km)
1999 Mitsubishi Diamante
Gasoline
3.5L 6-cylinder (SOHC) · FWD
18 mpg (13.1 L/100 km)

Frequently asked questions

What engine does the 1998 Mitsubishi Diamante have?

3.5L 6-cylinder (SOHC). Engines can differ by trim, so check the trim list below.

What is the fuel economy of the 1998 Mitsubishi Diamante?

Combined fuel economy is 18 mpg (13.1 L/100 km), as published by the source shown in the specification table.

Is the 1998 Mitsubishi Diamante front-wheel, rear-wheel or all-wheel drive?

Drivetrain: FWD.

Are there recalls for the 1998 Mitsubishi Diamante?

NHTSA lists 1 recall campaign for this model year (last checked October 20, 2026). Details are in the Recalls section.