[Fred68]

Originally Posted by KirkJames

I take it it's just the cost that's the plus then. I always thought you got more. 50+ mpg for a 180 is certainly better than normal. I get about 30 if you look at my sig!

I do the same amount of miles a day and get anywhere between 285-320 miles per tank and it costs me roughly 65 quid each tank so 21 quid less per tank for more miles might make sense for me. Providing there is no loss in power at all!

The 50mpg would be the equivalent cost if it was running on petrol. Lpg has a much lower caloriffic value than petrol so each liter of Lpg has less energy to give. This reduces the power the engine makes so to compensate you have to use a bit more throttle to overcome to lower power so you use a bit more Lpg than you would petrol to go the same distance!!