
Mitsubishi 4G15
The trademark problem of the Orion engine family is throttle wear, which is expressed in increased or, most often, floating idle speeds.…
The Eagle Summit is a subcompact car from Eagle as part of Chrysler. Manufactured from 1989 to 1996. Released two generations of models. In the first generation, the car was manufactured as a sedan and a hatchback, and since 1992, it was also a modification of a 5-seater station wagon with a maximum interior volume. In the second generation, the car was also produced in the back of a two-door coupe. The Summit is based on 3rd generation Mitsubishi Lancer.
The Eagle Summit was offered with 3 engines between 1989 and 1996 (3 petrol). Displacement ranges from 1.5 to 1.8 liters, power output from 70 to 215 hp. All of them use a timing belt. 2 are turbocharged. The longest rated lifespan belongs to the Mitsubishi 4G93 (about 350,000 km).
| Engine | Years | Volume | Power | Fuel | Timing | Oil | Lifespan |
|---|---|---|---|---|---|---|---|
| Eagle Summit 1 1989–1992 | |||||||
| Mitsubishi 4G61 | 1989–1992 | 1.6 L R4 | 105–160 hp | petrol, NA / turbo | belt | 4 L | ~250,000 km |
| Eagle Summit 2 1993–1996 | |||||||
| Mitsubishi 4G93 | 1993–1996 | 1.8 L R4 | 110–215 hp | petrol, NA / turbo | belt | 3.5–3.6 L | ~350,000 km |
| Other Eagle Summit engines generation not specified | |||||||
| Mitsubishi 4G15 | 1985–2012 | 1.5 L R4 | 70–110 hp | petrol | belt | 3.6 L | ~300,000 km |
Eagle Summit 1 (1989–1992): Mitsubishi 4G61; Eagle Summit 2 (1993–1996): Mitsubishi 4G93.
By rated service life the most durable Eagle Summit engines are: Mitsubishi 4G93 — about 350,000 km; Mitsubishi 4G15 — about 300,000 km; Mitsubishi 4G61 — about 250,000 km. Actual lifespan depends heavily on maintenance and oil change intervals.
Engine oil capacity with filter: Mitsubishi 4G15 — 3.6 L (5W-30, 5W-40); Mitsubishi 4G61 — 4 L (5W-30); Mitsubishi 4G93 — 3.5–3.6 L (5W-30).
Timing belt: Mitsubishi 4G15, Mitsubishi 4G61 and Mitsubishi 4G93. Belts must be replaced on schedule: on many engines a broken belt bends the valves.
No, all Eagle Summit engines in our database run on petrol.

The trademark problem of the Orion engine family is throttle wear, which is expressed in increased or, most often, floating idle speeds.…

Since there are no balance shafts, the main problem of the series does not threaten these engines.

GDi modifications are known for the frequent vagaries of the direct fuel injection system.