Hi guys, looks like I might be having trouble: I got the car out the shed this morning and left it running for 10 minutes while I got my boots on. Came out and it wasn't running any more (that's funny...) started it up again and went to open the gates - the idle was going chuff chuff chuff, slower and slower, then it stalled. Tried starting it again, nothing. Turned the key to listen to the lift pump - it just made a "bonk" but wasn't running. The I left it for 5 minutes, tried again & it started, then I got the dreaded "ANTIPOLUTION FAULT" on the MFD, then it was doing the chuffing again (chuffing car

) so I revved it a few times, the antipollution went off and it settled down. It seems to be going now but I'm getting a lot of squawking from the filter head.
I'm guessing this is wax in the fuel (at only -9?) I don't know any place that does Polskipug's fuel additive here ( I checked) so I'm thinking about dumping some petrol in there. The question is how much? Not enough so it doesn't do anything or too much so it kills the pump(s)?