L-Body
Plymouth Horizon (1976–1990)
Maintenance Schedule
6 recurring services keep the 1976–1990 Plymouth Horizon 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.
Full schedule
Intervals follow the factory maintenance schedule for the 1976-1990 Plymouth Horizon. Cost ranges are typical U.S. shop prices.
| Service | Interval | Est. cost | Notes |
|---|---|---|---|
| Oil Change | Every 5,000 mi or 6 mo | $15–25 | Engine oil and filter replacement |
| Air Filter | Every 12,000 mi or 12 mo | $12–20 | Engine air filter replacement |
| Transmission Service | Every 24,000 mi or 2 yr | $60–90 | Manual or automatic transmission fluid change |
| Spark Plugs | Every 24,000 mi or 2 yr | $40–60 | Spark plug replacement |
| Brake Fluid | Every 24,000 mi or 2 yr | $30–50 | Brake fluid flush and replacement |
| Coolant Service | Every 24,000 mi or 2 yr | $40–60 | Coolant flush and replacement |
Common questions
How often should I change the oil on a 1976–1990 Plymouth Horizon?
Every 5,000 miles or 6 months, whichever comes first. A typical U.S. shop charges $15–25. Engine oil and filter replacement.
How much does it cost to maintain a Plymouth Horizon (1976–1990)?
Routine maintenance on the 1976–1990 Plymouth Horizon 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 Horizon?
Transmission Service at $60–90, due every 24,000 miles. Manual or automatic transmission fluid change.
Cost ranges are typical U.S. independent-shop and dealer estimates; your local prices vary. Severe driving — towing, short trips, extreme heat or cold — shortens many intervals. Information here is general and may be estimated or AI-assisted — not professional, medical, or veterinary advice. Verify against your owner's manual, a professional, or your vet before acting. See our Terms & Disclaimer.