Tom’s Orange County - Sales & Service

909 N. Grand Avenue | Santa Ana, CA 92701

Tom’s Los Angeles - Sales, Service & Parts

13443 E. Freeway Drive | Santa Fe Springs, CA 90670
Frequently Asked Questions

Q: Can I convert my existing gasoline powered vehicle to propane or CNG fuel?

A: Unfortunately, No. In California existing vehicles cannot be converted. Only new vehicles can be converted, prior to delivery to the end user.

Q: How much does CNG cost and where can I buy it?

A: visit for accurate pricing and locations

Q: What type of fuel mileage does a CNG vehicle get?

A: CNG vehicles achieve the equivalent mileage of a gasoline engine. For example, if a 2012 transit-connect  gets EPA-estimated 21 city/27hwy/23combined MPG, you can expect the same fuel mileage from CNG.

Q: Can I convert my diesel engine to propane or CNG? Do you offer propane or CNG injection?

A: We do not offer these types of systems, they are not CARB approved, therefore not legal for sale in California

Q: Are there incentives to purchase alternative fuel and/or hybrid vehicles?

A: Yes. California Energy Commission and AQMD’s have offered incentives for alternative fuel vehicles. These are typically offered on a first-come first-served basis, until funding is exhausted. Currently there is an opportunity with SCAQMD, the deadline is Sept 28,2012 to submit applications.
Hybrid funding is available through the California HVIP program. Visit for more information on this program.

Q: What type of range can I expect with a CNG vehicle:

A: It depends. With commercial vehicles we can add fuel tanks for extended range. This will depend on the body configuration of the vehicle, but typically we us a minimum 24GGE tank on medium-duty vehicles. For practicality, use 22 gallons X expected fuel mileage to calculate your range.

Q: How is CNG measured?

A: Typically, natural gas is measured in cubic feet. However, however for motor vehicles it is measured in “GGE”. GGE means Gasoline Gallon Equivalent. 24GGE = 24 gallons gasoline equivalent


Integrity Logistics, LLC

I recently purchased a 2012 Isuzu NPR with a CNG (Compressed Natural Gas) conversion for my fleet. The CNG Isuzu was a replacement for an Isuzu diesel in our fleet. The fuel cost to run the CNG versus the diesel is roughly 60 percent less. We pay for this vehicle in the fuel savings alone! Our drivers state that when they have a load over 10,000 pounds, they prefer the CNG because it runs clean and steady compared to the diesel. There is no loss of power with the CNG but I think people may confuse the CNG with a Hybrid (Gas/Electric).

We did a test on the first 3,000 miles with our 2012 Isuzu NPR CNG versus our 2005 Isuzu NPR Diesel and the results were remarkable. Where we would typically spend $108 per tank in diesel cost, we spent $41 per tank in CNG for the same route.

One of our fears about obtaining a CNG vehicle was that there would not be enough CNG fueling stations in our service areas. We have found 44 filling stations in Los Angeles County, 36 in Orange County, 21 in Riverside County, and 25 in San Diego County. We use Android Smart Phones with an application called “CNG Fuel Finder” that directs us to the CNG fueling stations in the area we are in and they are usually within 9 miles distance.

Since we completed our trial on the first CNG, we have now purchased 2 other CNG vehicles and are having significant fuel savings. Another benefit to the CNG vehicles is the use of the carpool lane as we applied through the state of California for an alternative fuels white sticker allowing the vehicle in this lane with no other passengers. In addition to saving 60% in fuel savings, we are also saving 18 percent in our payroll costs due to the time saved using the carpool lane. This helps our bottom line and also helps us to deliver to the end user faster.

I strongly recommend the purchase of CNG vehicles to lower our carbon footprint as well as lessen the need of foreign oils. I will no longer buy gas/diesel vehicles as the CNG cannot be beat!

If anyone would like to ask me any questions regarding this article my email address is [email protected]. I would be glad to help Tom’s Truck Center help educate anyone with hesitations because KC and Clyde have changed our company’s bottom line by convincing us to take a chance.

Jeff T. Griffis
Owner/ General Manager
Integrity Logistics, LLC
[email protected]

Ware Disposal Co., Inc

January 8, 2013

To whom it may concern

Ware Disposal has purchased several natural gas (CNG) powered Isuzu NPR’s from Clyde Stires/ Toms Truck Center over the past year.

Each of these vehicles plays the different role in our fleet, bin trucks, flatbeds, etc. Thus far, the performance of the vehicle has been outstanding. The bodies were removed from our existing vehicles and transferred to the new vehicles, which required pto integration and different fuel tank locations. This was accomplished seamlessly. Our vehicles were delivered with 24.5 GGE capacity and they operate 8-10 hours a day, 6 days a week.

Our organization has been utilizing natural gas for the past several years in our heavy-duty fleet (60+ CNG vehicles) and we are pleased to have been able to transition our medium-duty fleet to natural gas as well. We have been well aware of the fuel savings, but also our real world experience with natural gas vehicles has been that these type of vehicles require far less maintenance than diesel powered vehicles.

Our decision to transition into more natural gas vehicles has proven economical, reliable, and environmentally responsible.


Jay Ware
General Manager

R. Deutschman & Associates, Inc

January 3, 2013

I just wanted to take a minute and Thank you for the Great Job you did helping us with the acquisition of our
2012 Natural Gas Isuzu Truck. The first thing that you did was approach us with the opportunity and
information about the program the State of California was offering. It was clear you were passionate about the
need to use alternative forms of energy and as we have since discussed this is what ultimately convinced me
to purchase the truck.

The truck runs great and we have the Natural Gas Stations dialed in to our route. You patiently helped us
every step of the way and the service could not have been any better. We are saving money and when we get
ready to purchase another truck I will be contacting you!

Roger Deutschman

R. Deutschman & Associates, Inc
631 Lunar Avenue
Brea CA, 92821

What is CNG?

An Introduction to CNG

What is CNG?

CNG stands for Compressed Natural Gas. It is the same stuff that is piped into most homes in the United States, and it may already be what you use for cooking on your stove and for heating your house.

Where do we get CNG?

Just like oil, CNG is drilled out of the ground. In fact, many of the same wells that have oil also have a lot of compressed natural gas. The advantage to extracting the natural gas is that it is easier because it is a gas – there is less processing required to get it out of the ground. However, this also makes it a bit more difficult to transport. As a gas, you can’t just put it into a 55 gallon drum and ship it across the world. There are two main options for shipping natural gas – in a pipeline or by compressing it first into compressed natural gas (CNG) or liquefied natural gas (LNG).

However, whenever you compress anything there are many safety measures that are needed to make sure that there won’t be any accidents. So the tanks that are used to transport natural gas are much stronger, and therefore much heavier than those used to transport gasoline and oil.

Is CNG safe?

Many people are worried about the safety of CNG. There have been several high-profile accidents that have happened where CNG tanks have exploded and this rightfully causes some people to be a bit anxious about CNG.

The truth is that CNG is extremely safe when handled properly. It is actually less explosive than gasoline, and harder to ignite. It also has the advantage that if there is an accident with CNG, when it escapes from its container, it literally floats away, unlike gasoline which leaves a flammable puddle and explosive fumes that are heavier than air, so they stick to the ground. Almost all of the accidents that have occurred in the past with CNG have been due to people who do not follow standard safety procedures – these procedures are very, very easy to follow, but there are always some people out there trying to save a buck who don’t do what they are supposed to do. As far as I know, there has never been a major accident in the USA involving a CNG system that was properly installed and cared for.

What kind of mileage does a CNG car get?

A very important question that many people ask is how much it will cost to operate a CNG vehicle. Luckily, CNG is priced in a unit that is called a “gasoline gallon equivalent”, or GGE. Cars get the same mileage on 1 GGE as they do on 1 gallon of gasoline. All of the prices for the USA on are in GGE, and that means that you can fill a car that is running on CNG for the equivalent of as little as $0.87 per gallon in Utah and get the same mileage as someone driving the same car running on gasoline, when they are filling their car for three or four dollars a gallon.

As an example, Honda makes a natural gas Civic. If a 2002 model year Civic gets about 30 miles to the GGE in the city and about 36-40 miles to the GGE on the highway. This is exactly the same as the gasoline version of the car gets. So when you look at prices (at least prices in the USA), you can compare them directly to the price of gasoline down the street.

How much CNG does the USA have?

Many people are interested to know how much CNG is available in the US, so we can “reduce our dependence on foreign oil”. The answer is complicated, and depends on who you believe. According to the CEO of Chesapeake Energy, a major CNG producer in the United States, there is enough domestic CNG to meet our needs for the next 100 years based on estimated demand.

Natural Gas Benefits
Natural gas is a domestically available, inherently clean-burning fuel. Using compressed natural gas (CNG) and liquefied natural gas (LNG) as vehicle fuels increases energy security, paves the way for fuel cell vehicles, and improves public health and the environment. Using renewable natural gas provides even more benefits.

Increasing Energy Security
The United States imports more than 60% of its petroleum, two thirds of which is used to fuel vehicles in the form of gasoline and diesel. The demand for petroleum imports is increasing. With much of the worldwide petroleum reserves located in politically volatile countries, the United States is vulnerable to supply disruptions.

Natural gas vehicles are an immediate solution to the nation’s energy security needs. Most of the natural gas consumed in the United States is produced domestically or by politically stable countries, and an extensive natural gas infrastructure exists. Using natural gas vehicles instead of conventionally fueled vehicles reduces U.S. dependence on foreign oil and increases energy security.

Introduction to Propane Vehicles

What is a propane vehicle?
Propane , also known as liquefied petroleum gas (LPG), has been used in vehicles since the 1920s. It is considered an alternative fuel under the Energy Policy Act of 1992 and qualifies for alternative fuel vehicle tax incentives.

Today, most propane vehicles are conversions from gasoline vehicles. Dedicated propane vehicles are designed to run only on propane; bi-fuel propane vehicles have two separate fueling systems that enable the vehicle to use either propane or gasoline.

Propane vehicle power, acceleration, and cruising speed are similar to those of gasoline-powered vehicles.

Lower maintenance costs are a prime reason behind propane’s popularity for use in delivery trucks, taxis, and buses. Propane’s high octane rating (104 to 112 compared with 87 to 92 for gasoline) and low carbon and oil contamination characteristics have resulted in documented engine life of up to two times that of gasoline engines. Because the fuel mixture (propane and air) is completely gaseous, cold start problems associated with liquid fuel are eliminated.

Compared with vehicles fueled with conventional diesel and gasoline, propane vehicles can produce significantly lower amounts of harmful emissions of propane vehicles is increasing U.S. energy security.

How Propane Vehicles Work
Propane vehicles work much like gasoline-powered vehicles with spark-ignited engines. Propane is stored as a liquid in a relatively low-pressure tank (about 300 pounds per square inch). Liquid propane travels along a fuel line into the engine compartment. The supply of propane to the engine is controlled by a regulator or vaporizer, which converts the liquid propane to a vapor. The vapor is fed to a mixer located near the intake manifold, where it is metered and mixed with filtered air before being drawn into the combustion chamber where it is burned to produce power, just like gasoline.

Tom's Truck Center 33.7530999, -117.8515651.