Our 50mpg ZS180!

[KirkJames]

Originally Posted by talkingcars

LOL - MPG on LPG is worse than on petrol.

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!

[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!!

[guru]

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!

It depends on the conversion, on my ZT-T there is a slight noticeable loss in power when it hits gas however that has an older Landi Renzo system which isn't as good. The ZS had a very up-to-date Prins system and there genuinely no difference in power between gas and petrol and the only way you can tell it's changed is by looking at the switch.

The important thing to remember is that not all LPG conversion or systems are the same.