2005 Porsche 911 - Maintenance & Specs
The 2005 Porsche 911 belongs to a Porsche 911 lineup that Know Your Ride tracks across 35 model years, from 1981 to 2026. Records for this year list a 3.6L engine. It is configured as rear-wheel drive with a manual 6-spd. The 2005 sits mid-run, with both earlier (1981) and later (2026) 911 model years also documented.
It takes 0W-40 full synthetic oil, 4.5 qt with a new filter meeting A40. Fluid specs on file include G13/G12++ coolant, DOT 4 brake fluid. Know Your Ride lists 14 scheduled maintenance items for this vehicle, the earliest interval falling at 7,500 miles. Documented torque values include oil drain plug 20 ft-lb, lug nut 96 ft-lb, spark plug 18 ft-lb.
Its overall reliability signal is rated "Excellent" based on aggregated complaint and crash data.
EPA fuel economy is rated at 14 city / 21 highway MPG, 16 MPG combined. Estimated annual fuel cost is about $3,600.
Quick Specs
| Oil viscosity | 0W-40 |
| Oil type | Full Synthetic |
| Oil capacity (w/ filter) | 4.5 qt |
| OEM oil spec | A40 |
| EPA combined | 16 MPG |
| Coolant | G13/G12++ |
| Technical service bulletins | 1 |
Common Trouble Codes
- P0300 - Random/Multiple Cylinder Misfire Detected
- P0420 - Catalyst System Efficiency Below Threshold (Bank 1)
- P0171 - System too Lean (Bank 1)
- P0128 - Insufficient Coolant Temperature for Stable Operation
- P0442 - Evaporative Emission Control System Leak Detected (small leak)
- P0455 - Evaporative Emission Control System Leak Detected (gross leak)
- P0700 - Transmission Control System Malfunction
- P0301 - Cylinder 1 Misfire Detected
- U0100 - Lost Communication With ECM/PCM A
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Part of the free Know Your Ride vehicle maintenance reference. Figures are sourced from EPA, NHTSA and manufacturer data and are for general reference - always confirm with your owner's manual.