Mitsubishi Diamante engines

Mitsubishi Diamante is a full-size Japanese car manufactured by Mitsubishi Group from 1990 to 2005. In total, 2 generations of the model were made. The car was produced in sedan and station wagon bodies. The cars were assembled in Japan and Australia. In addition to modifications for domestic markets, there were export versions. Diamante was heavily marketed in the North American market. Translated from Spanish, the name of the car means “diamond”.

Mitsubishi Diamante, 1st generation, 1990–1995

First generation Mitsubishi Diamante, 1990–1995 The first Mitsubishi Diamante was released in 1990. The car was equipped with V6 engines of 2, 2.5 and 3 liters. In addition to the sedan, there was a station wagon version produced in Japan. Also, the first generation Diamante had an all-wheel drive version.

Mitsubishi Diamante, 2nd generation, 1995–2005

Second generation Mitsubishi Diamante, 1995–2005 In 1995, the second generation Mitsubishi Diamante was released. The range of engines has changed: 2.5, 3.0 and 3.5 GDI. The station wagon and the all-wheel drive version disappeared from the lineup. The Diamante has been restyled twice.

In the domestic Japanese market, there was also a “charged” version of the Mitsubishi Diamante, which was distinguished by an audio system with a total power of 270 watts, a sports suspension, exclusive rims and an original exhaust system.

The car was produced until 2005.

The Mitsubishi Diamante was offered with 6 engines between 1990 and 2005 (6 petrol). Displacement ranges from 2.0 to 3.5 liters, power output from 105 to 280 hp. All of them use a timing belt. The longest rated lifespan belongs to the Mitsubishi 6G72 (about 400,000 km).

Mitsubishi Diamante engines by generation

EngineYearsVolumePowerFuelTimingOilLifespan
Mitsubishi Diamante 1 (F1) 1990–1996
Mitsubishi 6G723.0 L V6140–240 hppetrolbelt5.5 L~400,000 km
Mitsubishi 6G731990–19962.5 L V6165–200 hppetrolbelt5 L~400,000 km
Mitsubishi 6G711990–19922.0 L V6105–150 hppetrolbelt4.3 L~300,000 km
Mitsubishi Diamante F10 1992–1994
Mitsubishi 6A121992–19942.0 L V6145–200 hppetrolbelt4.2 L~250,000 km
Mitsubishi Diamante 2 (F3) 1997–2004
Mitsubishi 6G723.0 L V6140–240 hppetrolbelt5.5 L~400,000 km
Mitsubishi 6G741997–20043.5 L V6180–280 hppetrolbelt5.7 L~400,000 km
Mitsubishi Diamante F30 2002–2005
Mitsubishi 6A132002–20052.5 L V6160–175 hppetrolbelt4.2 L~300,000 km

Mitsubishi Diamante engine FAQ

What engines were used in the Mitsubishi Diamante?

Mitsubishi Diamante 1 (F1) (1990–1996): Mitsubishi 6G72, Mitsubishi 6G73 and Mitsubishi 6G71; Mitsubishi Diamante F10 (1992–1994): Mitsubishi 6A12; Mitsubishi Diamante 2 (F3) (1997–2004): Mitsubishi 6G72 and Mitsubishi 6G74; Mitsubishi Diamante F30 (2002–2005): Mitsubishi 6A13.

Which Mitsubishi Diamante engine is the most durable?

By rated service life the most durable Mitsubishi Diamante engines are: Mitsubishi 6G72 — about 400,000 km; Mitsubishi 6G73 — about 400,000 km; Mitsubishi 6G74 — about 400,000 km. Actual lifespan depends heavily on maintenance and oil change intervals.

How much oil does the Mitsubishi Diamante engine take?

Engine oil capacity with filter: Mitsubishi 6A12 — 4.2 L (5W-40); Mitsubishi 6A13 — 4.2 L (5W-40); Mitsubishi 6G71 — 4.3 L (5W-40); Mitsubishi 6G72 — 5.5 L (5W-30, 5W-40); Mitsubishi 6G73 — 5 L (5W-30, 5W-40); Mitsubishi 6G74 — 5.7 L (5W-30, 5W-40).

Does the Mitsubishi Diamante have a timing belt or chain?

Timing belt: Mitsubishi 6A12, Mitsubishi 6A13, Mitsubishi 6G71, Mitsubishi 6G72, Mitsubishi 6G73 and Mitsubishi 6G74. Belts must be replaced on schedule: on many engines a broken belt bends the valves.

Was the Mitsubishi Diamante available with a diesel engine?

No, all Mitsubishi Diamante engines in our database run on petrol.

Engine details

Mitsubishi 6G71

Mitsubishi 6G71

1986–1992 · 2.0 L V6 · petrol · 105–150 hp · belt

The motors of the first years of production were damp and caused a lot of problems.

Mitsubishi 6G72

Mitsubishi 6G72

1986–2008 · 3.0 L V6 · petrol · 140–240 hp · belt

Apart from the engines of the first years of production, this is a very reliable engine with a huge resource. Most of…

Mitsubishi 6G73

Mitsubishi 6G73

1990–2002 · 2.5 L V6 · petrol · 165–200 hp · belt

This distributed injection engine is not very demanding on fuel quality, however, many of these engines were equipped with a capricious GDi…

Mitsubishi 6A12

Mitsubishi 6A12

1992–2010 · 2.0 L V6 · petrol · 145–200 hp · belt

A very dense layout of the engine compartment complicates the maintenance of the engine.

Mitsubishi 6G74

Mitsubishi 6G74

1992–2021 · 3.5 L V6 · petrol · 180–280 hp · belt

Modifications of the engine with distributed injection are undemanding to the quality of fuel, which cannot be said about the common versions…

Mitsubishi 6A13

Mitsubishi 6A13

1996–2005 · 2.5 L V6 · petrol · 160–175 hp · belt

The very tight layout of the engine compartment makes it somewhat difficult to maintain.

Models with the same engines

Scroll to Top