Best to stick to the open bonefide rights of way marked on the definitive map, if you don't and get caught, you're liable to a fine and section 59 ticket, and that means any time you're caught again (within 1 year) you could loose the vehicle. It also gives the anti's more ammo to get legitimate lanes closed. I take it you're td5 by the fuel filler type, so angle should not alter fuelling as it's a presurised system, tdi will likely be a lift pump starting to fail.
Best to stick to the open bonefide rights of way marked on the definitive map, if you don't and get caught, you're liable to a fine and section 59 ticket, and that means any time you're caught again (within 1 year) you could loose the vehicle. It also gives the anti's more ammo to get legitimate lanes closed.
I take it you're td5 by the fuel filler type, so angle should not alter fuelling as it's a presurised system, tdi will likely be a lift pump starting to fail.