K-Car
Plymouth Reliant (1981–1989)
Maintenance Schedule
6 recurring services keep the 1981–1989 Plymouth Reliant healthy — starting with oil changes every 5,000 miles. Budget roughly $1,100–1,700 in routine maintenance over 100,000 miles at typical U.S. shop prices.
Applies to model years 1981, 1982, 1983, 1984, 1985, 1986, 1987, 1988, 1989
Full schedule
Intervals follow the factory maintenance schedule for the 1981-1989 Plymouth Reliant. Cost ranges are typical U.S. shop prices.
| Service | Interval | Est. cost | Notes |
|---|---|---|---|
| Oil Change | Every 5,000 mi or 6 mo | $18–28 | Engine oil and filter replacement |
| Air Filter | Every 15,000 mi or 12 mo | $15–25 | Engine air filter replacement |
| Transmission Service | Every 30,000 mi or 30 mo | $70–100 | Automatic transmission fluid and filter change |
| Spark Plugs | Every 30,000 mi or 3 yr | $50–80 | Spark plug replacement |
| Brake Fluid | Every 30,000 mi or 30 mo | $40–60 | Brake fluid flush and replacement |
| Coolant Service | Every 30,000 mi or 3 yr | $50–75 | Coolant flush and replacement |
Common questions
How often should I change the oil on a 1981–1989 Plymouth Reliant?
Every 5,000 miles or 6 months, whichever comes first. A typical U.S. shop charges $18–28. Engine oil and filter replacement.
How much does it cost to maintain a Plymouth Reliant (1981–1989)?
Routine maintenance on the 1981–1989 Plymouth Reliant runs roughly $1,100–1,700 over 100,000 miles at typical U.S. shop prices, spread across 6 recurring services. Independent shops usually land near the low end; dealers near the high end.
What is the most expensive scheduled service on this Reliant?
Transmission Service at $70–100, due every 30,000 miles. Automatic transmission fluid and filter change.
Cost ranges are estimates for typical U.S. independent shops and dealers; your local prices will vary. Always confirm intervals against your owner's manual — severe driving conditions (towing, short trips, extreme heat or cold) shorten many of them.