New to the forum and to Porsche in general. I just bought a 2011 Carrera GTS cabrio 6MT and a 2011 Panamera V6. Love both the cars.

The GTS comes with the limited-slip differential option. In my recent CLS63 AMG, the manual was asking for a differential fluid change at about 2K miles. The Porsche manual does not say anything about a differential fluid change. Does anyone know if it is required on the Porsche, or I shouldn't worry about it?

Thanks in advance!

 

You may want to check your build sheet to see if yours have LSD. It was an option that not many dealers ordered. Not all GTS come with LSD

 

Sport Suspension, which drops the GTS an extra 20mm and includes a limited slip differential ($950). If you have the sports susp. you have the LSD. Not sure about the oil change intervals though....

 

I checked the build option codes, it does have the limited-slip differential option, which has a stand-alone option code for the GTS. The code is 220 and states "mechanically locking rear differential."

 

That change at 2000k was I'm sure for the break in period when it was new from the factory.It's not every 2000 miles for a change! I would say maybe again at 90,000-100,000k.

 

I have a 2012 GTS with SPASM which includes the limited slip differential. I have not seen anything in the service schedule in manual that says anything about differential fluid change and my car has never had the fluid changed and I go to the Porsche dealer for all my service.

 

The SPASM does drop the ride height 20 mm from the ride height of base model Carrera, but only an additional 10 mm from the ride height of the S cars that have the standard PASM.

 

I was just looking at the my Service Manual yesterday and can confirm the above. Really though, you can just call up any Porsche dealer and ask the service tech.

 

Thanks for the replies. It seems no one knows including the dealer. I am not going to worry about this.

In terms of PASM on the GTS. It comes as a standard equipment on the GTS and does not include locking differential. You can opt for the sport PASM, which lowers the car another 20mm and includes the LSD (option codes 030 & P17). Or you can stay with the regular PASM and add the LSD as a stand-alone option (code 220). The latter option is on my GTS. If you do not have codes 030, P17 or 220, I doubt the car has LSD.

See PDF from Porsche site that lists all standard equipment as well as options. It states the GTS comes standard with PASM, but you can option it for sport to lower 20mm further.
http://www.porsche.com/microsite/ipa...en/911_GTS.pdf

 

SPASM, or sport PASM as you said, does not lower the GTS by an additional 20 mm. The GTS is already 10 mm lower than a standard Carrera without PASM. All the "S" cars have PASM which lowers the car 10 mm from the standard Carrera. SPASM lowers the car another 10 mm from a S or GTS with just PASM. It can be confusing, but when Porsche says SPASM lowers the GTS by 20mm, they mean 20mm from the regular, base model Carrera. All S cars, including the GTS, have PASM standard which lowers the car 10mm from the base model Carrera. SPASM adds an additional 10mm, for a total of 20mm.

 

My bet, You are correct, sport PASM lowers the car for a total of 20mm, 10 mm lower than the base GTS with standard PASM.

 

You are correct sir!

 

If you google any type of maintenance on a break in period for a manual locker, a limited slip,or an automatic locker,gear or clutch driven,they all require a break in period...It's a wise choice!

 

It appears that you are very knowledgable about Porsches and GTS, I am planning to track the car regularly and my first event is coming up. Any advice on more than usual maintenance on the GTS if tracked? My car has 7k miles and I just changed the oil (mobil1 0w-40). Would you do anything extra in addition to regular maintenance suggested by the manual?

I am going to change the differential oil just in case considering break in.

 

If you are going to change the differential fluid, make sure you replace with the correct type. I do not know if Porsche uses a different lubricant in their limited slips compared to regular differentials, but many manufacturers do.