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About Us

Optimus Motor's Limited

Established in 1995, Optimus LPG Gas Systems is Leicester’s ONLY UKLPG, LPGA approved agents. Installers of BRC, OMVL and Romano, we at Optimus LPG provide a customised solution in alternative, dual fuelled, Gas converted vehicles.

We cover mainly the private sector market with the expertise and track record in offering a uniquely convenient and personal service with highly competitive pricing. Our systems are designed to reduce both the running costs of a petrol powered vehicle and its emissions.

The systems we use are the most technologically advanced LPG systems available today, OBD compliant (Euro 4/5 Legislation). A highly qualified, experienced and competent technician carries out each conversion with workmanship on par with a“factory fit”. The systems fitted to most of our vehicles is approved by Mercedes, Alfa Romeo, Audi, Nissan and Toyota as well as other smaller European car manufacturers. Seventeen years on OPTIMUS LPG Gas Systems continues installing LPG systems in vehicles, priding it self in offering an unrivalled professional service to our customers.

What's LPG ?

Liquefied Petroleum Gas (LPG)whatslpg is a natural hydrocarbon fuel made up of Propane and Butane. When stored under pressure it becomes a dense liquid allowing large quantities of gas to be stored in a relatively small space.

Approximately 60% of the world's supply is produced from the separation of gas products, with the remaining 40% produced in the refining of crude oil. The UK currently exports

Automotive LPG or Autogas is the most accessible alternative fuel available to petrol and diesel in the UK today. Thousands of pounds are saved each year by drivers and fleet operators by switching to LPG. This includes cars, vans, taxis and even buses whilst benefiting the environment.

Driving an LPG vehicle is safe, easy and best of all, much cheaper than driving a petrol or diesel model. Recent independent tests have also shown that out of the three fuels, LPG has the best environmental record.

In addition to the cost savings, running vehicles on LPG sends a positive environmental message about your organisation.

There are currently around 11 million drivers worldwide using LPG. They are producing less harmful emissions than those driving petrol or diesel, whilst making significant savings at the pumps.

In the UK, LPG costs around half the price of petrol and diesel, usually resulting in annual savings of around 40% in fuel costs.

Advantages over other fuels

  • The combustion of LPG is smoother as a result of the higher octane content. Unlike other fuels, no additives are required to guarantee high quality.

  • LPG contains no lead and is therefore cleaner.

  • It is actually better than petrol because it reaches the engine in pure gas form with improved combustion resulting.

  • With modern technology, there is hardly any discharge of carbon monoxide, and compared to petrol and diesel, the exhaust fumes contain less harmful substances.

  • The life of the engine is extended as a result of the absence of acids and carbon deposits.

  • The engine oil does not become diluted with a consequential reduction in servicing costs.

  • Unlike diesel, you do not have to adjust your driving style. Cold starting is no problem, engine performance is almost exactly the same as with petrol. There is no spilling when filling your tank and no possibility of theft or pilfering. Engine noise is low and you'll be driving in a more environment-friendly way.

  • The environmental advantages of LPG for automotive use are indisputable.

Current Users of LPG.

Italy leads the field with over a million vehicles on the road, the Netherlands, North America and Mexico each have just under half a million. By far the biggest consumer of LPG however is Japan , which uses over 1,8000,00 tonnes a year. This is hardly surprising given the countries population density and the pollution problems of its major cities such as Tokyo and Yokohama . Over 90% of all taxis in Japan are powered by LPG.

In Vienna , severe pollution problems started many years ago and to overcome these, the authorities started converting buses to LPG some 30 years ago. This proved so successful in reducing pollution that the number of buses running on LPG has been increased over the years to 400 today.

The Safety Record

LPG has an excellent safety record throughout the world, both in terms of its storage, transportation and use. Extensive safety tests have been undertaken with respect to its use and the conclusions reached are that it is substantially safer than petrol due to its more robust fuel tank being more resistant to impact damage.

Running Cost Savings

Environmental issues are becoming more and more evident in our daily lives. In the mid 90's the then Chancellor made changes to the rates of excise duty on motor fuels to make LPG even more attractive to road users. He specifically mentioned the environmental advantages of LPG and successive Chancellors have continued this fiscal policy as a means of addressing the environmental problems we all face.

Resulting from this we have witnessed the tremendous investment by major fuel companies necessary to install efficient LPG dispensers in their fuel sites. There are currently over 1,300 public refuelling sites in the UK many of which are on major routes and at super market stations.  This commitment undoubtedly underlines the acceptance of LPG as the most viable alternative fuel available today.

LPG emissions*

Compared to petrol

  • 75% less carbon monoxide

  • 85% less hydrocarbons

  • 40% less oxides of nitrogen

  • 87% less ozone

Compared to diesel

  • 90% less particulates, hydrocarbons and carbon monoxide

  • 50% less oxides of nitrogen

* based on tests undertaken at Millbrook

Department of health statistics suggest that particulates are responsible for several thousand deaths each year and many thousands of cases of illness and reduced activity. Road transport is the largest single source for particulates and LPG can reduce these emissions by 90% compared to diesel.

The other pollutant highlighted by the governments 'Local Air Quality Strategy' report as causing significant problems and requiring further measures to meet the set targets are Oxides of Nitrogen. As shown above, using LPG can make substantial reductions in Oxides of Nitrogen emissions.

Noise is another pollutant causing increased concern, as stated in the governments 'New Deal For Transport' White Paper. LPG engines are 50% quieter than diesel

LPG - Clean & Greener

There is no escaping the effect that Greenhouse Gas emissions are having on our planet. Since the majority of the world's Greenhouse Gas emissions are released in the form of CO² burning from fossil fuels, our energy policies have to go hand in hand with climate change policy. Using LPG instead of other fossil fuels can make a real contribution to lowering the world's carbon footprint, helping mitigate the effects of climate change.

LPG - A Lower Carbon Fuel

  • In comparison to most hydrocarbons, LPG has a low Carbon to Hydrogen ratio, which means it generates lower amounts of CO² per amount of heat produced.

  • It has a comparatively high heating value, meaning it contains more energy per kilogramme than most competing fuels.

  • According to the United Nations International Panel on Climate Change (IPCC), LPG is not a greenhouse gas, meaning it is assigned a global warming potential (GWP) factor of Zero. The IPCC lists the GWP of CO² as 1 (by definition as it is the equivalent measure of a carbon footprint) and methane as 25.

Source: Atlantic Consulting 2009

LPG - An array of Environmental Advantages

  • A multipurpose, modern, clean, accessible and efficient energy source.

  • The cleanest fossil fuel available off the national grid

  • Limiting the impact of energy use to global warming due to its low CO² emissions.

  • Promoting human health by limiting air pollution thanks to low particle emissions, low nitrous oxide emissions and low sulphur content.

  • Making a modern energy accessible to consumers out of reach of mains alternatives.

  • Accelerating the development of renewable energy by serving as a clean back up for intermittent renewables such as solar and wind.

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How Much Does it Cost

optimuslpgcostsThe cost of a professional and approved LPG conversion can vary from one vehicle to another.

The figures given below should be used as guidance only.

For a more accurate and competitive quote "Get in Touch" or visit us at the address below.

We are using latest multipoint injection gas systems.

OUR PRICES ARE:

4 Cylinder Engine Conversion from £850 all inc. (VAT)

6 Cylinder Engine Conversion from £1050 all inc. (VAT)

8 Cylinder Engine Conversion from £1250 all inc. (VAT)

All Our conversion come with a no-nonsense 24 months warranty.

You are safe in knowlage that a UKLPG approved installer is converting your car and it will be registered with goverment bodies  UKLPG database.

For more details please visit www.drivelpg.co.uk

How Does It Work ?

optimuslpghowitworksAll LPG components fitted comply with ECE Regulation 67, which ensures that all the components used during the installation are suitable for LPG conversion and are fitted in accordance to the Code of Practise 11, issued by the LP Gas Association.

The following guidance provides vital information on how to use your new LPG system correctly and in combination with the vehicles regular fuel system. Information is also given regarding the LPG components fitted to your vehicle and on maintaining those components so that you enjoy many years of trouble free motoring.

The Fuel Changeover Switch

This switch forms part of the of the LPG system core. It intelligently controls the flow of petrol and gas together with the switching between the two fuels. There are 3 possible starting options with the switch fitted to your vehicle.

1. Switch is set to Petrol Mode (Red LED) - PETROL Starting

In this position, when the engine is cranked the vehicle will start on petrol and will then continue to run on Petrol. The LPG system is not activated at all.

2. Switch is set to Gas Mode (Yellow LED) – PETRO/GAS Starting

In this position when the engine is cranked the vehicle will start on Petrol. However after approximately two minutes and as soon as the throttle is pressed and the engine speed increases over 2000rpm, the petrol system will disengage and LPG system will be activated. It is important to note that on some vehicles when the changeover takes place it may be necessary to lightly touch the accelerator to stop the engine stalling. This is normal as on some vehicles as the actual changeover of fuels takes place there may be a microsecond delay before the gas begins to flow. Please ensure that you do not fully depress the accelerator during switchover as this may cause damage to the LPG Vaporiser Unit and to your vehicle. This option is the favoured start position for the majority of users. It allows the petrol injectors to be flushed out so as to stop them getting clogged through lack of use.

3. Switch is set to Gas Mode (Yellow LED) - GAS Starting

To start on Gas it is necessary to first turn the Ignition Key to the. Acc position (i.e. Red lights light up on the dashboard). Now switch the AEB Unit to Petrol position and then back to Gas position. Next turn the key to start the engine. The vehicle will start on Gas.

The Fuel Level LED’s

The LED’s are incorporated into the switch unit. There are four green LED’s and one red LED to identify the level of gas in the tank. All four Green LED’s indicate a full tank. 1 Red LED indicates you are running on reserve. The lights are controlled by a measuring device in that tank however the LED’s are for general guidance and one should not take this as an accurate reading. Gas expands and contracts in relation to temperature therefore it can be very difficult to get an accurate reading. Each vehicle will differ as to how quickly the lights go out so it is advisable to become accustomed to your own vehicle setup. It is also not advisable to run the vehicle until it runs out of Gas. Always try and fill up in good time. Regularly running the tank empty will cause damage to the LPG Vaporiser and possibly even the engine. Trying to accelerate when the gas tank is empty will always result in a 'backfire' or 'blowback'.

Multipoint Sequential Injection Systems

If your vehicle is fitted with the latest multipoint sequential system it will not allow you to start on gas. The system will always start on petrol and wait for a specified engine temperature before allowing the system to switch over to gas.

It also incorporates a gas pressure device which monitors gas pressure and will switch back to petrol when it senses your gas tank is empty.

Injection Emulator Unit (Injection only)

This unit is normally located within the engine bay. No servicing is required, but it is important that the unit is kept dry. Any water or moisture entering the unit will cause it to malfunction. Manufacturer’s warranty does not extend to damage as a result of water damage.

Closed Loop Control System

This unit (ECU) is optional on all injection vehicles pre 1995. Thi ECU is located within the engine bay and provides diagnostics and tuning capability (via laptop), should this be required. The ECU manages the LPG system by monitoring readings from the various engine sensors. It is a self-learning unit and continually adjusts settings to suit engine performance. No servicing is required, but it is important that the unit is kept dry. Any water or moisture entering the ECU will cause it to malfunction. Manufacturer’s warranty does not extend to damage as a result of water contamination. Disconnection of the battery will erase the ECU’s parameters and will reset the ECU to factory default.

Please note that the ECU requires correct operation of your oxygen sensor. The oxygen sensor should be checked regularly to make sure is it running at optimum performance and replaced at manufacturers recommended intervals. A faulty oxygen sensor can cause damage to the LPG system and your car.

Switching between Fuels

With the LPG system fitted to your vehicle it is possible to safely switch between fuels whilst driving.

When Switching from Petrol to Gas

When driving, always lift OFF the accelerator when switching over. Switch from petrol to gas and you will notice that the yellow LED will flash. This can also be tried with the vehicle stationary. The flashing yellow LED indicates that the LPG unit is being charged with gas ready for the actual switchover. The switch over from petrol to gas will take place as the accelerator is released. Lift off the accelerator and then feather the throttle at point of switchover. Please remember to never fully depress the accelerator at the moment of switchover. This may damage your LPG system and will not be covered under manufacturer’s warranty.

Switching from Gas to Petrol

Switch over whilst driving or stationary. The computer will shut off the gas and release the Petrol. Lift off the accelerator and then feather the throttle at point of switchover. Again, avoid fully depressing the accelerator when switchover takes place.

The LPG Filter

Your LPG conversion incorporates a gas filter similar to a petrol filter. This performs the task of filtering the LPG for foreign particles before it gets to the engine. As with any filter this requires regular replacement. Manufacturers recommended replacement interval is 10,000 miles. Non replacement of the filter will be recognisable by a drop in performance and some hesitation in acceleration.

Running In

As with new units your LPG vaporiser will need to be run in. The normal run in period is 1000-1500 miles. During this period it is not advisable to run the vehicle at full throttle. In the running in period you may notice excessive LPG consumption. This is normal. It is as a result of the vaporiser 'bedding in' on a rich mixture but gradually the mixture will lean off. Your vehicle's gas mixture is purposely set rich to take into account the running in of the unit so hopefully a retune will not be required.

Water Checks

Although every care has been taken during the installation of the LPG system, we advise that owners check the water coolant level as specified in the vehicle owner’s handbook on a weekly basis. The coolant is a very important requirement of LPG running

1.     Coolant level must always be correct

2.     The thermostat must always be in excellent working order

3.     On very cold mornings you must start the vehicle on petrol and the switch to gas when the engine reaches normal working temperature.

The LPG Tank

The tank fitted in your vehicle complies with R67 and will also carry an “E” approval mark (dependant on tank size) . All tanks can withstand 45 bar pressure even though the safety release valve will open up at 25 bar. This provides a huge safety margin to guard against accidents. The tank is constructed of 4mm gauge steel (thicker than that used on Land Rover Chassis). The tanks are actually safer and more resilient than a normal petrol tank. All tanks are designed to absorb impact in case of accidents and thus have a higher chance of remaining intact. In the extreme case of a collapse, the pressure release valve will become operative and the gas will be released in a controlled manner. LPG has a higher ignition point than petrol so it does not ignite as easily. Crash tests have shown gas powered cars to be extremely safe. Tanks are fitted to only except 80% of its liquid capacity. Attention should be made to this when re-fuelling. It is recommended that all tanks should be pressure tested every 5 years and so will normally outlast the life of the car.

Tank Valves

The tank is fitted with a multivalve device that controls many functions. It incorporates two cut off units that can be used to shut the gas both from the 'fill point to tank' and 'from tank to the engine bay'. The shut off valves are simply screwed clockwise to turn off the supply. The multivalve also includes a pressure release valve that will operate should the pressure in the tank exceed 25 bar. A fuel level unit in­dicates the amount of gas in the tank. The multivalve is housed in an air tight box that can be accessed by unscrewing the clear plastic cover anti-clockwise.

Vehicle Maintenance

All regular vehicle engine maintenance should be carried out as normal. Running a vehicle on LPG does however extend engine oil life as the gas contains no lead and is as such a much cleaner fuel. Service intervals could thus be extended however this decision is left up o the customer. Spark plug gaps and HT Leads must be regularly checked for optimum performance. Any bodywork on the vehicle must be carried out with due care. If the vehicle is to be sprayed in a spray oven then the LPG tank must be drained as the extreme heat could cause the tank to explode. Any welding work on the vehicle will also require a drain of the vehicle gas system and the closure of all valves. If in any doubt about draining the LPG system please consult the installer or a suitably qualified garage. It is also advisable to have exhaust emissions checked regularly, preferably every 10,000 miles. Since running on LPG does make the internal parts of the engine run hotter it is the responsibility of the customer to ensure that all integral parts of the engine are in good working order so that they work efficiently at a higher temperature threshold. Valves are very important and must always have a good seal at its seat. Failure to maintain the engine at its optimum could result in damage to the gas system and the engine.

Re-Fuelling

LPG is used as an alternative fuel for vehicles. This provides benefits for both the vehicle user in the form of reduced vehicle fuel costs (approx. 50%) and for the environment in the form of reduced emissions of harmful pollutants.

Filling Instructions

Fuel tanks must not be filled beyond its 80%capacity. Fuel tank capacity is also indicated on your certificate. Always follow the filling instruction displayed at the filling station.

  1. Switch of engine. Remove protective cap & insert relevant adaptor (if required)

  2. Connect hose from pump by pushing and twist nozzle (for bayonet fitting)

  3. Lock Gun

  4. Push and hold button until filling complete. You will hear a change in noise and filling will slow down. At this point it is advisable to stop filling

  5. Release lock on gun and stand at arm’s length before releasing the gun

  6. CAUTION a small amount of gas vapour will be released

  7. Remove gun by twisting off bayonet

  8. Remove adaptor if applicable. (be aware, the adaptor will be cold)

  9. If vapour escapes from filler consult forecourt staff

  10. If vapour escapes from the vehicle switch over to petrol and contact your installer.

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Get it Touch

 

Give us a call and see what we can do for you

0116 2736 123 / 07712 660 662

17-21 Rosebery Street | Leicester | LE5 4GL