Yep the Milbrook Vauxhall conversions do have their faults it is mainly due to the dealerships not servicing them as they should be or customers not being correctly informed of a servicing shedule when they purchased the car new.

Vauxhall dealerships do take the utter piss out of their lpg customers, we can supply and fit anything for the vauxhall range as I've done a few courses there now. A local dealership quoted one of our customers £800 ! for 4 injectors, not fitted either Whats worse is they know less about lpg than I did before I even started doing it

The vehicles to watch out for are the liquid injection lpg Fords, mainly converted by Tickford iirc, they run a intank pump which alone is worth scrapping the LPG kit over if it fails.