Wow 12 years/144000kms seems too long for any performance type of driving. I noticed the PDK oil gets up to ~248F/120C on a warm day on the track so I thought it is probably cheap insurance or I could say expensive insurance!Hey Don, there is no serviceable filter in the pdk for 981/982 991/992. That’s why service interval is 12 years/144000kms. Because at that point your replacing the pan that has the inbuilt fibrous filter and magnets built in. Hence why it’s so expensive. So what myself and others have done, is simply drain the fluid and refill on a regular basis. You only get 50% out, so some do it twice within the week to get the new fluid up to about 75%. This way also doesn’t involve the need for the piwis system. Changing the pdk fluid is an easy and cost effective way to ensure optimum condition as is the rear transaxle fluid change.
I paid over $1000 AUD just in parts for the PDK service! The filter alone was $810 and the oil $228.
Your method seems like it could be a better option!