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Alternative Fuel Vehicle Conversion
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                                PERSONAL,   BUSINESS,   FLEETS

"America's Affordable Alternative Fuel"

Are You Ready?

...to reap the benefits of converting your old gas guzzler to affordable, clean-burning, propane? Our trained, certified, conversion mechanics are ready to serve you now! They can convert your existing, gasoline powered vehicle to run on one of the cleanest alternative fuels available - PROPANE. You can choose to either convert your vehicle to run solely on propane or dual-fuel, where your gasoline system is still operational with a simple flick of a switch, you can revert back to gasoline.

Propane is an approved alternative clean fuel, per the Clean Air Act, propane gas is nontoxic with minimal emissions and is not harmful to soil or water, it is released as a gas and does not spill, pool or leave a residue.  There is almost no carbon in LPG; carbon is what turns your engine oil black.  Propane is very stable at varying temperature ranges and has a remarkable safety record. LPG goes into your engine as a vapor, there is no "raw" fuel entering the cylinders which washes the lubricating oil off the cylinder walls so the piston rings stay better lubricated, resulting in many LPG fueled engines lasting up to THREE TIMES LONGER than the same engine on gasoline!

Vehicles running on propane have the longest range of any alternative fuel. Converting your gasoline powered vehicle to LPG may qualify you for Federal and State agency tax credits.

With a few modifications to the engine, virtually any gasoline engine can be converted to run on LPG. Vehicles can be equipped to operate solely on LPG (dedicated conversion) or to switch between LPG and gasoline (dual-fuel conversion). The "under hood" components of the LPG system are almost indistinguishable from the factory components under the hood.

LPG tanks fit compactly into car trunks, or in some cases where the gasoline tank has been removed, the tank(s) can be mounted where the gasoline tanks were previously mounted. In trucks and vans, LPG tanks can be installed inside the cargo bed or under the vehicle.  LPG tanks are tested to a minimum 4 times normal operating pressures and are 20 times more puncture resistant than gasoline tanks.

Like gasoline, LPG is flammable but has a much narrower range of flammability. LPG has a much higher ignition temperature of 920-1020 degrees vs. 80-300 degrees for gasoline. LPG will only burn with an air-fuel ratio of between 2.2% and 9.6% and will rapidly dissipate beyond its flammability range in the open atmosphere, making ignition less likely. 

Propane is the leader in automotive alternative fuels and powers more than 4 million vehicles in more than 38 countries. The U.S. Department of Energy projects that propane will be the leading alternative vehicle fuel in the 21st century. Local government and private sector fleets will soon be required to purchase alternative-fueled cars and trucks in an effort to reduce harmful emissions from fossil fuels - the leading source of air pollution in the United States.

Tests conducted by the U.S. Environmental Protection Agency show that propane vehicles can produce 30 percent to 90 percent less carbon monoxide and about 50 percent fewer toxins and other smog-producing emissions than gasoline engines.

Propane costs in fleets typically range from 5 percent to 30 percent less than those of gasoline. The smaller size of propane tanks relative to CNG tanks results in valuable added capacity and lighter weight loads, which translate directly to savings for fleet managers.

The start-up costs of a propane fleet can be offset by lower operating and maintenance costs over the lifetime of the vehicles. Usual savings after converting a fleet to propane, range from 20-40% less than gasoline-operated fleets. It is the most cost-effective alternative transportation fuel when capital costs, operation and maintenance costs are all taken into consideration. Typically, fleet vehicles travel long distances, having a high fuel consumption, the savings can be very reasonable.

Since 90% of the U.S. propane supply is produced domestically, the price of propane remains more stable and less susceptible to rising prices due to speculators and our dependenc on foreign oil. And with the larget storage capacity in the world, the United States' supply is abundant. You may also notice lowered maintenance costs since LPG leaves less residual deposits in the engine, reducing wear and tear on engine parts. You will also find savings as your oil stays cleaner, requiring less-frequent changes, saving you time, money, oil and oil filters! Click here to interact with our Savings Calculator.


State and Federal agencies have implemented tax credits for certain qualified vehicle conversions. Because these incentives and tax credits are apt to change, we are providing links below for you to visit and retrieve the most updated information from these agencies:

U.S. DEPARTMENT OF ENERGY - Oklahoma Incentives and Laws

U.S. DEPARTMENT OF ENERGY - Energy Efficiency & Renewable Energy


Conversion costs vary according to vehicle type.

Typical vehicle conversion turnaround time will be one week from the time you deliver your vehicle to our shop.


Senator Coates is Traveling Ambassador for Propane

Senator Coates

Yes, that's Oklahoma State Senator Harry Coates shaking the hand of Ken Green, owner of Oklahoma Liquefied Gas, as Coates picks up his newly converted 2006 model Ford F-150 which was converted to run on a bi-fuel system (from Technocarb Abbotsford, B.C.).

When Coates ran the family construction business with his father, all of their vehicles ran on propane. "But, that was back in the day when it was pretty temperamental, and hard to start in the winter", he said. "Now, with new products and technology, it is the perfect time to go back to using a vehicle that runs on propane." And the Senator is practicing what he preaches.

The particular system which was installed for Coates is the bi-fuel propane/gasoline vapor injection system. OLG set up the system to start on gasoline and then convert over to propane after the engine warms up. "We put in a manifold tank to go under his toolbox," said Green, who also serves on the engine fuel advisory commitee for the Propane Education & Research Council (PERC).

Coates, who uses the vehicle for state senate business travel and for personal use, pointed out that he fuels up his vehicle at OLG in Seminole about once a week. "It's way too easy," he commented. "I highly recommend this to anyone who is interested in a clean-burning fuel."

Completely satisfied with the performance of the vehicle, he remembers the old days when, if a vehicle ran out of propane, the driver had to coast in the vehicle until the gasoline kicked in. Now, he doesn't see any performance difference between propane and gasoline. "In fact, " he noted, "when I switch, there's not even a hesitation whether switching from propane to gas or gas to propane, you neveer even notice, other than you can see it show up on the instrument panel."

Coates has not workeed on legislation involving propane, other than occasional appointments to the Oklahoma Gas Board. He would be willing, however, to carry the torch on any legislative issues involving propane in the future.


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The calculator below is designed to show how much you may save by using propane as opposed to gasoline.

To use the calculator:

  • Position your cursor in the box to the right of "Price Per Gallon"(in the Gasoline column) and enter the current PPG for gasoline
  • Click ' Tab', enter the current PPG for Propane
  • Click 'Tab', enter the curent miles per gallon for your gasoline operated vehicle
  • Click 'Tab' twice
  • Enter your current miles driven annually
  • Click 'Tab' twice.
Price Per Gallon :
Miles Driven Annually :
**50¢/gallon tax credit  
Annual Fuel Cost :

For more information, or to schedule
your alternative fuel vehicle conversion,
Call: 1-800-522-2797
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