[Stevied1960]

Hi XC90mk1.
Why is an LPG system not worth it?
Do you mean from a problem/running issue, or cost of the install = fuel savings cost?
My car is the V8 4.4 and has a Prins system installed when I bought it.
To date I have had no issues, especially when considering the cost of LPG over petrol.
The system is faultless, changes to LPG when engine hits temperature and switches back to petrol when LPG tank is depleted with a warning beep.
The EM light came on once when I was really accelerating hard to the max of the gearbox, it also went out on its own after a few miles of normal driving.
So I for one can't complain, then again I didn't have the cost of the install but I have the benefits of cheaper running costs.