ffffing diesil spills

[Grahamm]

Should anyone care to know I have done some research . . . .

Interesting, where did you find that?

I've had a look myself and although it says there should be a locking fuel cap, I've not found if there's exemptions for either older vehicles or eg foreign vans etc.

I do know that I've seen a diesel trail running around three quarters of a (very large) roundabout and I don't see how that could have happened without a faulty/ missing cap.