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alantaur
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Everything posted by alantaur
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Manual Transmission Oil Change Instructions
alantaur replied to Loren's topic in DIY Articles - Carrera (996) - Maintenance
Dave, you absolutely do NOT want to use the Mobil 1 75w90 that you find at your local auto parts stores!! That fluid is NOT Porsche approved! The one you want is Mobil Delvac 75w-90 which is a heavy shockproof gear oil for industrial and military applications. It's also the factory fill for the Porsche Cup cars. No auto parts store sell this, you need to order it online. Google for it. The Mobil Delvac 75W-90 is far superior to the factory approved Shell oil (999 917 546 00 Shell (Transaxle)) that some dealers may stock. I just had a clutch replacement on my 05 C2S, and the dealer changed the transmission oil upon my request. They used the approved Shell oil, and I noticed that shifting was noticeably worse after the service, especially when shifting into the lower gears when cold. After a couple of weeks of rough shifting (the synchros were definitely unhappy) and a lot of online research, I came upon the Mobil Delvac 75W-90, which is purported to be the factory fill, and had ordered a gallon. After the oil replacement, my car now shifts like new, with only minimal occasional notchiness when cold, and effortless when warmed up. -
Hard clutch
alantaur replied to severan's topic in 997-1 Series (Carrera, Carrera 4, Carrera 2S, Carrera 4S)
This is true. I just had the pressure plate replaced along with a new clutch kit/release bearing on my 05 C2S (which has a different clutch than the C2), and the clutch pedal effort dropped by about 20% after the replacement. If you're used to BMWs (like I am), the clutch pedal effort is noticeably higher, but not unreasonable by any means.