Porsche 911 GT3 991 Maintenance Schedule
Recommended Time and Mileage Based
Maintenance Service Intervals for Porsche 911 GT3 991
Porsche 911 GT3 991 2013 – 2019
Maintenance Service Schedule
The factory recommended maintenance schedule for the Porsche 911 GT3 991 is shown below. Maintenance is due annually or 6K miles, with an intermediate service at 2 years or 12K miles, and a major service at 4 years or 24K miles.
Porsche 911 GT3 991 Maintenance Costs
911 GT3 991 Recommended Maintenance Intervals
To keep your 991 GT3 healthy, we recommend you inspect the car and change the engine oil and filter annually or every 6K miles. The original 991 GT3 maintenance schedule called for major maintenance intervals on the 911 GT3 991 versions at 24K miles or 4 years. There are also additional service items required at subsequent 2 and 6 year intervals. PDK clutch fluid replacement was recommended at 48K miles or 4 years.
Recommendations for 991 GT3 Maintenance
In addition to the standard service intervals, we recommend a PDK clutch fluid replacement at 30K miles for the 991 GT3. We also recommend you stick with the factory recommended spark plug change at 12K miles on the GT3 engine.
What’s Included at the 991 GT3 Service Interval
Many people become confused by Porsche maintenance schedules. The intervals and maintenance items are cumulative – so for clarity, a 4 year service includes all the maintenance items recommended at the 4 year interval, plus all maintenance items from the 2 year and annual maintenance interval as well.
Safety and Maintenance Inspection
Every annual service should include a rigorous safety and maintenance inspection. It’s essential this is carried out by a highly skilled Porsche technician who knows the likely wear characteristics of your GT3 and can identify issues of concern at an early stage. A thorough inspection should reveal maintenance items that have been influenced by track driving or by local environmental conditions.
Lifetime Maintenance Items
Some maintenance items are described as “lifetime,” such as coolant, for example. It’s important during the inspection to discover the health of these “lifetime” items. If you need hot weather track protection from your coolant, you’ll find the “lifetime” is considerably shorter than you might expect!
Your GT3 Maintenance Service Questions Answered
The GT3 is designed for hard driving and performing on the race track. That often leads to unique questions and very individual needs for both car and driver. We recommend you consult with a specialist GT shop that has first hand experience of GT cars and your local track environments.
Porsche 911 GT3 991 Scheduled Maintenance Recommendations
Annual Maintenance or Every 6K Miles
- Vehicle Inspection
- Change engine oil and filter
- Clear roof drains
- Battery CCA test
- Reset maintenance service indicator
- Update or replace maintenance items based on inspection
- Replace engine air intake filters (GT3 RS)
Add the following maintenance items to the annual service, based on the time or mileage intervals shown below:
Additional Maintenance Every 12K or 2 years
- Replace Spark Plugs
- Replace brake fluid
- Replace cabin pollen filter
- Replace cabin pre-filter element
- Replace engine air intake filters
Additional Maintenance Every 24K or 4 Years
- Replace drive belt
Additional Maintenance Every 48K or 6 years
- Replace PDK clutch fluid
- Clean throttle body
Additional Maintenance Every 96K or 12 years
- Replace manual transmission fluid
- Replace PDK transmission oil
Maintenance for HPDE and Track Driving
If you plan to take your 991 GT3 to the track for some fun, there are different maintenance considerations to make. In general, track driving will speed up the requirements for maintenance and the replacement of service items. Most track day companies, groups and the PCA HPDE, will require a safety inspection be completed by a Porsche repair shop. However, you should view the safety inspection as the minimum requirement for having a safe day out at the track with your Porsche.
When to Service Your Porsche GT3 for the Track
If you’re pottering around in the novice group at a track day (what are you doing!), most of the standard maintenance service items on your Porsche are up to the job. Once you progress to more spirited driving in the advanced run groups, it’s quite easy to quickly exceed the performance of those standard service items, especially if you are running multiple track days in a season.
Maintenance Upgrade Recommendations for Race Track Driving
At this stage, it’s extremely important not only to complete a safety inspection, but also to radically speed up maintenance. For example, a brake fluid flush and oil change before each event is a sensible approach. Likewise, a spark plug change after two events will keep your engine running healthy under track conditions.
There are upgrades to standard maintenance items that can help prevent over-driving. For example, Castrol SRF brake fluid will be far more durable than the standard brake fluid. There are better engine oil recommendations for the track versus the standard factory refill. As your driving progresses, it’s also worth considering different brakes and tires. A specialist Porsche shop with track experience, can better help you understand the increased maintenance requirements for your car.
