[cicsprog]

W/O jacking the car up, I can't tell. Looking from distance, looks like fill plug is 10mm and drain is 17mm. Bently manuals look like 17mm (crazy they don't say). I have PET also and it doesn't say - crazy. Performance WEB site sells a 17mm for socket set and say its 17mm for 88.

I have a 17mm but better get a 10mm. Excuse for more tools I guess.