930 (Turbo)
Porsche 911 (1976–1989)
Maintenance Schedule
9 recurring services keep the 1976–1989 Porsche 911 healthy — starting with oil changes every 3,000 miles. Budget roughly $11,400–17,500 in routine maintenance over 100,000 miles at typical U.S. shop prices.
Applies to model years 1976, 1977, 1978, 1979, 1980, 1981, 1982, 1983, 1984, 1985, 1986, 1987, 1988, 1989
Full schedule
Intervals follow the factory maintenance schedule for the 1976-1989 Porsche 911. Cost ranges are typical U.S. shop prices.
| Service | Interval | Est. cost | Notes |
|---|---|---|---|
| Oil Change | Every 3,000 mi or 3 mo | $60–90 | High-performance oil and filter |
| Tune-up | Every 12,000 mi or 12 mo | $200–300 | Spark plugs, air filter, fuel filter |
| Brake Fluid | Every 12,000 mi or 12 mo | $100–150 | Performance brake fluid replacement |
| Valve Adjustment | Every 15,000 mi or 18 mo | $400–600 | Valve clearance adjustment |
| Transmission Service | Every 30,000 mi or 30 mo | $300–450 | Manual transmission fluid replacement |
| Coolant Flush | Every 30,000 mi or 3 yr | $200–300 | Engine coolant replacement |
| Turbo Service | Every 30,000 mi or 3 yr | $500–800 | Turbocharger inspection and service |
| Suspension Check | Every 30,000 mi or 2 yr | $300–500 | Performance suspension inspection |
| Differential Service | Every 30,000 mi or 3 yr | $250–400 | Limited slip differential service |
Common questions
How often should I change the oil on a 1976–1989 Porsche 911?
Every 3,000 miles or 3 months, whichever comes first. A typical U.S. shop charges $60–90. High-performance oil and filter.
How much does it cost to maintain a Porsche 911 (1976–1989)?
Routine maintenance on the 1976–1989 Porsche 911 runs roughly $11,400–17,500 over 100,000 miles at typical U.S. shop prices, spread across 9 recurring services. Independent shops usually land near the low end; dealers near the high end.
What is the most expensive scheduled service on this 911?
Turbo Service at $500–800, due every 30,000 miles. Turbocharger inspection and service.
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.