LPG Cost Savings
LPG on the forecourt costs around half the price of petrol (or less than 25p per litre if you have your own storage tank). A vehicle running on LPG will return slightly fewer miles per gallon than when running on petrol. This means the cost of running a vehicle on gas will be about 40% less than the cost of running it on petrol.
Conversion Costs can vary depending on the vehicle type and tank arrangement required. Kit costs can be recouped in as little as 4,000 miles in fuel savings alone (based on Land Rover 2.25).