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Frequently Asked Questions

PG or Autogas as it is most commonly known when used as a road fuel is 99% propane (C3H8) and 1% butane when bought in the UK. The 2 gases are blended at different ratios according to the prevailing temperature in the region that it is to be sold in.

Around 4% of all crude oil ends up as LPG, most comes from the refining process the remainder or “associated gases” are captured during the drilling and pumping process. You cannot produce diesel & petrol without producing this ratio of LPG.

The clue is in the chemical formula C3H8, LPG is significantly richer in Hydrogen as a ratio to carbon than either diesel or petrol. If LPG could replace all diesel & petrol as a road fuel, it would have the same effect in CO2 reduction as removing 20% of all vehicles from the road.

OEMs vary considerably in their attitude to the fitting of dual fuel systems, mainly because of the lack of technical credibility shown by other system manufacturers. OEMs tend to favour large transport companies over small ones, which though unfair is understandable.

However European warranty law is specific in what it allows OEMS to exclude from their warranty and how they apply it. Mercury has proved through its technical excellence that the system cannot & will not have any adverse effect on your truck’s engine or any other component and because of that we can supply the strongest possible covering warranty. More on our warranty here.

We have created the warranty schedule based on discussions with OEMs, it’s more extensive than it needs to be but when it comes to insurance that’s all to the good.

Quicksilver will not interfere in any way with your normal R & M schedule. However Mercury will happily train your R & M supplier to service Quicksilver & to provide system breakdown cover. Otherwise Mercury engineers will provide cover under one of their Service Contracts. More about our service contracts here.

Absolutely not, quite the opposite! LPG delivered in the right way is actually beneficial. As a low carbon fuel LPG produces less carbon so oil stays viscous longer and cleaner to. Crank case solids are also reduced and carbon build up around the turbo is significantly lower.

If you feel you need a technical report on the effects of LPG on truck engines please call us. The key is to ensure equal fuelling and effective control over the entire system. Only Quicksilver gives the level of technical sophistication needed to reap the full benefits of fuelling with LPG while protecting your valuable assets.

The Channel Tunnel does not at present permit any vehicle powered by gas to travel through it. Ferries have no restrictions. There are no other restrictions which will cause any inconvenience to operators.

If you have a bulk station at your depot the tank will be inspected annually free of charge by your gas supplier. On board tanks do not require statutory annual inspections; however we include that in our regular service schedules.

You will need to notify them and we will send necessary documentation to your insurance company. From our experience there will be no increase in insurance costs.

Quicksilver will normally improve emissions of most Euro 3, 4 and 5 trucks, but will not get them to Euro 6 levels. To achieve that we would need to add after-treatment systems. However until the system is accredited and certified by an appropriate body, it will not qualify for exemption.

The use of LPG has strong environmental credentials, particularly in the area of CO2 emissions and is taxed accordingly. At present the government has a 3 year advance agreement with the industry that prevents duty levels from closing more than 1 penny per year.

LPG is a by product of the refining process and if not used may have to be destroyed as it is expensive to store in the quantities produced by the oil exploration companies. It is almost inconceivable that the government would raise duties significantly. If they did the LPG market would be in danger of generating no revenue at all and emission levels would rise significantly.

In Germany the government has given a 20 year promise to maintain current duty levels to allow a stable LPG industry to grow, there is pressure on the UK government to move in the same direction.

The cheapest way to buy LPG is in bulk. Any of the major LPG supply companies will provide you with a bulk storage container complete with a pump, at a minimal rent if they see the potential for moving quantities of gas. The larger your converted fleet the cheaper your gas, there is a much stronger link between volume purchasing and discounts with LPG than with diesel.

Even if a truck has to fill up on the road there are 1500 LPG sites across the UK many of which are accessible to trucks. LPG in these sites is usually less than ½ the cost of diesel.