How Much Can You Save on Fuel with an LPG Conversion?

One of the biggest questions drivers ask when considering an LPG conversion is simple: how much will I actually save? The answer depends on several factors, but for most UK motorists, the savings are substantial.

LPG (liquefied petroleum gas) typically costs between 40% and 60% less per litre than petrol or diesel. If you're currently spending £60 to fill a 50-litre tank with petrol, you might spend just £24 to £36 with LPG. Over a year, this can mean savings of £1,500 to £3,000 for average drivers.

Breaking down the numbers:

• Average UK driver: 10,000 miles annually
• Average fuel consumption: 30 mpg
• Annual fuel cost (petrol at 145p/litre): approximately £1,210
• Annual fuel cost (LPG at 65p/litre): approximately £433
• Annual saving: approximately £777

However, you'll need to factor in the conversion cost itself. A professional LPG conversion typically costs between £1,500 and £3,000, depending on your vehicle type. This means most drivers break even within two to four years, then enjoy pure savings thereafter.

It's worth noting that LPG consumption is slightly higher than petrol—you'll typically use about 10-15% more litres because LPG has a lower energy density. But even accounting for this, the cost per mile is still significantly lower.

Additional financial benefits:

• Reduced maintenance costs due to cleaner combustion
• Longer engine life with proper LPG systems
• Some insurance companies offer discounts for LPG vehicles
• Lower road tax in some cases for dual-fuel vehicles

The savings become even more attractive if you drive a high-mileage vehicle, run a small fleet, or use your car for business purposes. Courier services, taxi operators, and delivery companies have been switching to LPG for years because the payback period is so quick.

Of course, savings depend on LPG prices, which fluctuate with the market, and your personal driving habits. But if you're a regular driver covering decent mileage, an LPG conversion is one of the most cost-effective ways to reduce your fuel expenses while still driving a reliable vehicle.