My polo started to miss at the top end of the rev range under WOT a few days back
The service indicator also came on at the dash after a few kms later

Been using BP fuel and I use Morey's smoke killer for every tank of fuel
Checked the fuel filter and it was done 19k km / 21 months ago
The owners manual indicates 30k km / 24 months but I bought a new one and changed it anyway



And this is what I found in the old filter -- algaeFuel filter change interval
Well looks like I'll need some antibacterial treatment and another fuel filter


Just wondering how often do you guys change your fuel filters