Hi guys I've got a 500l trekking for the family. Because I've done 12000 miles in it now I wanted to put some diesel addative in it but can't put the bottle passed the silver cap but when I put the diesel nozzle in at the petrol station it pushes it out the way. Any help would really be appreciated.

I haver a small funnel in my boot which I am guessing is only for emergency purposes should I need to fill up using a jerry can or similar. Is there anything like that you can use?

Me too, there should be a plastic tube in the trunk.