Unfortunately I have buggered the fill cap for the engine coolant on my 2001 3.9 liter as I've started the process for replacing the Degas bottle. I thought the10mm hex nut wasthe right size and I did get it off - put it back on and then just hand tightened it as I was doing some otherthings. 20 minutes later and the same hex nut twisted inside and removed some of the plastic. Perhaps its 11mm - which I dont have.... but it is on there remarkably tight! Any suggestions on ways to get it off? I suppose a trip to the dealer to get a new one is in my future... surprised how soft the plastic is around the hex opening...
Thanks
Mark.
Thanks
Mark.