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Race-Gas® is now partnered with Contingency Connection to sponsor 1,500 amateur racing events, 18,000 drivers and 50 tracks this year! We are racers too! We want to support the amateur racing community and give back to our customers who have supported our brand over the past 10 years!


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RACE GAS ULTRA has won the prestigious “2019 PRI Global Media Award”

PRI Award

An exclusive group of exhibitors participating in the 2018 PRI Featured Products Showcase were selected by a panel of international journalists to win a 2019 PRI Global Media Award, recognizing their product’s consumer appeal in each judge’s home country.

“We are so honored to have won this award. RACE GAS ULTRA is a very new product that took over three years to develop. To be recognized by PRI and the international media is validation that our hard work paid off”, said Mark Link, President of Motorsports Fuel and Equipment / RACE GAS.

“RACE GAS ULTRA is the first product we have released since the release of RACE GAS Race Fuel Concentrate in 2013. In the past 6 years distribution of RACE GAS Race Fuel Concentrate has grown to over 750 retail outlets and 13 wholesale distributors in North America. We have expanded into 8 different countries and are working to expand into 8 more in 2019.” Said Mark. “We will also be releasing our new “RACE GAS Diesel Performance Improver” at the end of the first quarter of 2019.”

“We would like to thank all of our customers who have supported us over the years. We appreciate your business, loyalty and enthusiasm for RACE GAS!” said Mark.



RACE GAS is a specially formulated fuel concentrate that transforms gasoline from any gas station into high octane/high energy racing fuel suitable for competition and professional use.


RACE GAS has been laboratory tested and race proven to perform in any gasoline powered engine. RACE GAS has been proven safe for Oxygen Sensors and Catalytic Converters.


RACE GAS is a race fuel concentrate. The purpose of the product is to create racing fuel out of pump gasoline from any gas station. So what does this mean?

First, other products on the market only raise the octane a few points but do not raise the octane to that of racing fuel. RACE GAS has been tested and proven to increase the octane of pump gas to as high as 100 to 105 AKI, (R+M/2), when blended with gasoline as specified in our blend chart.

Second, other products on the market only increase the octane. RACE GAS also raises the chemical / BTU energy of base fuel to equal that of racing fuel. This is very important as low energy with high octane will lean out the engine significantly at Wide Open Throttle.

Lastly, RACE GAS blend results are shown in Anti Knock Index, (AKI) or R+M/2. This is the same measurement that race fuel manufactures use to measure the octane of their fuel. Other products on the market blend to the Research Octane Number, (RON). The RON number is a poor representation of octane as it represents the performance of the fuel in the engine at idle. AKI represents the performance of the fuel under load.



RACE GAS ULTRA is specifically designed for the requirements of very high compression, boosted or nitrous engines. ULTRA, when mixed with pump gasoline, will create racing fuel with octane between 108 and 112 r+m/2. Like our original product, ULTRA increases the octane, chemical oxygen and chemical energy of the fuel to equal commercially distilled racing fuel.

RACE GAS ULTRA is a much different formula than original RACE GAS. “In testing we found the requirements of very high compression engines were different than engines with lower compression or lower boost. We needed to create a formula that could achieve the high octane while still meeting our requirements of high chemical energy and high chemical oxygen in a consistent and predictable way. We chose to use the highest quality pharmaceutical grade chemicals and to avoid using alcohols or naphthalene which don’t meet our design standards” said Dan Muldowney.

“Further, when we did our engine dyno testing we did “like for like” testing against commercial racing fuel. We first did a series of “pulls” with commercial racing fuel. We then drained the fuel and fuel rail and added RACE GAS ULTRA blended with pump gas. We then repeated the test. We did not change the engine set up or tune during testing”

“We found that we were able to create the same horse power and torque as commercial racing fuel and that the fuel performed consistently under different conditions.”

1 Can RACE GAS ULTRA + 4 gallons of 89 = 4 gallons of 108 Octane R+M/2

1 Can RACE GAS ULTRA + 4 gallons of 91 = 4 gallons of 110 Octane R+M/2

1 Can RACE GAS ULTRA + 4 gallons of 93 = 4 gallons of 112 Octane R+M/2



Race Gas Diesel Performance Plus is the first diesel additive specifically designed and focused on diesel performance. Other products on the market focus on several issues that are caused by low sulfur diesel fuel like anti-gel, anti-fungal, and stiction. Race Gas Diesel Performance Plus focuses specifically on CETANE, Oxygen, and Lubrication so that users can take full advantage of power adders like tuners, bigger turbos, or propane injection.


Today’s diesel engines are more sensitive to fuel quality than ever before. Low Cetane fuel robs your diesel of power, promotes hard starting, promotes the development of lube oil sludge, and increases the development of engine deposits.

Race Gas Diesel Performance Plus is specifically designed for use in high performance diesel applications. Race Gas Diesel Performance Plus replaces the lost CETANE, Oxygen, and Lubricity in today’s low sulfur diesel fuel. Race Gas Diesel Performance Plus allows users to take full advantage of their performance modifications, like tuners, increases in boost or propane injection.

Race Gas Diesel Performance Plus will:

One 32 ounce can of Race Gas Diesel Performance Plus will treat 32 gallons of diesel fuel. Or blend one ounce of Diesel Performance Plus per one gallon of diesel fuel. This product is to be added to diesel fuel. Do not add to Diesel Exhaust Fluid tank. This diesel fuel additive is compliant with federal low sulfur requirements for use in motor vehicles and non-road engines.


RACE GAS Race Fuel Concentrate FAQs

What does a fuel's octane rating mean?

Octane rating is the standard of measure of the performance fuel in an engine. The octane number is an indicator of the fuel's tendency to burn in a controlled manner versus exploding in an uncontrolled manner. Fuels with a high octane rating and withstand higher compression before detonating or "knocking".  Higher compression could be from high compression ratio of the piston / cylinder combination, the use of a super charger or turbo charger, or Nitrous oxide injection. 

What is “detonation / knocking / pinging”?

Detonation, (also called knocking or pinging), is when the fuel in the cylinder fires before the completion of the compression stroke. When detonation occurs the flame front of the combustion is uneven across the piston. The net result is the piston will “rattle” from side to side in the cylinder creating the knocking or pinging sound. 


There are several octane numbers for gasoline. What do they mean and which one should I care about?

There are 3 octane ratings commonly used in the US. Research Octane Number (RON), Motor Octane Number (MON) and Anti-Knock Index (AKI or (M+R)/2). Let's look at each of these individually.

Research Octane Number (RON): RON is the "laboratory" measurement of octane. The octane number is determined by running the fuel in a CRF Test Engine and varying the compression of the engine until the fuel "detonates" or Knocks. The engine is not under "load" and as a result RON numbers generally run higher than the other octane numbers.

Motor Octane Number (MON) is measured using the same CRF engine test however the engine is placed under a "Load" of 900 RPM. This test is a better indication of octane because it better simulates the octane in a real world setting, i.e. under load. MON numbers run lower than RON numbers.

AKI or (R+M)/2 is the Anti-Knock Index. This number is the average of the MON and RON numbers. This number is the most important because it averages the octane under load and at idle. This is the number that you should care most about. When a car company or an engine builder specifies a fuel's octane number for an engine, AKI is the number they are referring to.

When someone refers to a "point of octane" what specifically do they mean?

The scale of octane is a point of confusion for even seasoned motor sports enthusiasts and is a very important issue when evaluating octane enhancement products. A point of octane is 1/10 of an octane number. For example if you increase the octane of 87 pump gas by 8 "points" you are increasing the octane to 87.8. Many consumers see products on the shelf that promise to raise the octane by "10 points" and think that it will raise the octane by 10 octane numbers. That is not the case. Other suppliers rely on this confusion to sell their products. Don't be fooled!

How is RACE GAS different than octane boost products?

First, octane boosters only add a few points of octane and cannot raise the octane of pump gas to that of racing fuel. What many people don't know is that a point of octane is 1/10 of an octane number. For example, if an octane booster says it raises octane by 9 points and it is blended with 87 octane fuel the final octane number will be 87.9 not 96.

Second, octane boosters will raise the octane they don't increase the chemical energy of pump gas. This is because they are not adding the high quality fuel aromatics that are used in RACE GAS. As a result your engine will not "ping" but it will not generate as much power as it would using RACE GAS. 


I can't get high octane gas for my boat at the marina. Can I use RACE GAS in my boat?

Yes! RACE GAS will work in any engine that requires high quality, high octane fuel. RACE GAS can be used in:


Why not just use aviation gas in my high performance engine?

There are two major factors that go into the formulation of aviation gasoline. First is altitude. Aviation gasoline is blended with specific hydrocarbons to target engine operation altitudes of 10,000 feet or more. Some of these hydrocarbons are detrimental to a high performance engine operating at much lower altitude and will degrade performance.

Secondly, aircraft engines don't run at high RPM loads under normal operation. An aircraft at cruise might be turning at 2,500 to 3,000 RPM, significantly lower than the 5,000 to 9,000 red line typically seen in an automobile engine. Aviation fuel is blended to balance performance and economy at these low engine loads and as a result will not be as effective at high engine load.

One other issue that should be considered with aviation fuel is the use of lead. Tetraethyl Lead is used in aviation gasoline to increase the octane, (even in so called "Low Lead" or LL fuels). Lead will damage O2 sensors and catalytic converters which can be expensive to replace.

Lastly, it is illegal to pump aviation fuel into anything that is not an Aircraft. 


Why not use jet fuel in my car?

Jet fuel is more like diesel fuel than gasoline. It is designed to be burned in turbine engines at very high operating temperatures. Jet fuel would seriously damage your engine assuming that you could even get it to fire up in the first place!

I have heard that "ethanol" based fuels like E85 and E15 have very high octane ratings. Why not just use those fuels?

"Ethanol" based fuels do have a high octane they also have lower chemical energy than regular pump gas. As a result your engine must be tuned to accommodate the decrease in chemical energy by increasing fuel flow, either through changes to fuel injection or carburetor jet size. On average you will need 30% to 40% more fuel to equal the chemical energy of non-ethanol fuels.

In addition, ethanol based fuels can have negative effect on your fuel system and engine. Ethanol will degrade components in the fuel system like fuel pumps and seals. Ethanol will also promote corrosion in the fuel system and exhaust system.

Will RACE GAS harm my O2 sensors or catalytic converter?

No. RACE GAS  does not contain lead or other additives that can harm O2 sensors or catalytic converters.

I noticed that my spark plugs have an orange dust on them after running RACE-GAS in my tank. Are my plugs fouled or scorched?

No! The dust you are seeing is the byproduct of burning fuel with manganese. This dust does not affect plug or exhaust components in any way.

If you are old enough to remember burning leaded fuel, or look at the plugs from someone burning leaded racing fuel, you will see a greyish white dust on the plugs and exhaust pipes. This is the byproduct burning leaded fuels. This dust has no effect on plug performance and will not damage the engine either.

To insure that this dust doesn’t affect engine performance we have been burning fuel blended with RACE-GAS in many cars for the last 3 years. We have added RACE-GAS to every fill up in a Toyota, BMW, VW, Porsche and a Ford for 3 years with no negative effect on the plugs, catalytic converter or O2 sensors. In addition we have 3 race cars with an average of 140 race hours on them using RACE-GAS and have seen no issues. Lastly Tesar Engineering ran 3 Mustangs in the 2,000 Carrera Pan Americano using Mexican pump gas blended with RACE-GAS with no problems and great performance, (See the Testimonials page to read the full story). 


If a little RACE GAS is good, wouldn't a lot be even better?

No! It is possible to "over octane" an engine. While the effects on the engine are less than "under octane", the engine will not perform as well as it would with the right octane fuel. We encourage our customers to talk with their engine builder or people with similar engine configuration to determine the "right octane" for your car.

The chart below represents a good estimate of octane requirements by compression ratio. It is not specific to your engine so you may want to blend your fuel to an octane number or two higher than what is listed below.

Compression Ratio Octane Number Requirement
5:1 72
6:1 81
7:1 87
8:1 92
9:1 96
10:1 100
11:1 104
12:1 108

It is important to note that the octane numbers above are the "Anti Knock Index" number or (R+M)/2. 

Will RACE GAS benefit a stock / street car?

It depends on the car. High performance cars like a Corvette, Viper, Porsche or BMW and turbo charged cars like a WRX will see improved throttle response and power. Cars with carburetors can be tuned to run RACE GAS and will see more power, (changes will need to be made to the carburetor jets and the timing). Regular cars like a Chrysler 200, a Ford Focus or a Toyota 4Runner will not see a great deal of improvement.

It is important to remember not to "over octane" your engine as this will cause a decrease in performance.


Dynometer Results Using RACE GAS

Camero Race Car402 ci LSMultipleView Results
Chevrolet Camaro408 ci LS3 v8Vortec Supercharger / MultipleView Results
Chevrolet Corvette414 ci LS3 V8MultipleView Results
2004 SubaruWRX StiTurbo Back ExhaustView Results
Ford Mustang302 ci111 Octane VS 93 Octane + RACE-GASView Results
Chevrolet414 ci LS3 Engine DynoE85 VS 87 Octane + RACE-GASView Results
Chevrolet414 ci LS3 Engine DynoRACE-GAS Performance By Ounce / GallonView Results
Chevrolet421 ci Engine Dyno91 Octane VS 87 Octane + RACE-GASView Results
Pontiac550 ci Engine Dyno116 Octane VS 87 Octane + RACE-GASView Results

RACE GAS Testimonials

Paradigm Performance
Paradigm Performance

“When I was first introduced to RACE-GAS I was a bit skeptical. If you have been around the performance industry for a while you have seen products like this that really didn’t work. What convinced me to try it was the fact that several engine builders who I know had tested it and said it worked.

I decided to try the product as it was meant to be used, on the track. I used 87 octane pump gas with RACE-GAS in my NHRA bracket S-10 Drag Truck. Not only did RACE-GAS work, I took home 2 trophies that day! I was sold!

We started selling RACE-GAS to our customers. What we found is RACE-GAS solved a few problems we had. First, many of our customers are in rural areas where racing fuel or even premium pump gas is not available. When we tune customer’s cars we have to account for the fuel that they have available. This doesn’t allow us to get the most we can out of these engines.

With RACE-GAS our customers can get the high quality, high octane fuel they need to get the most performance out of their cars. We have a number of customers that keep a can in the trunk so they have what they need whenever and wherever they fill up.

The second problem that we solved was the money we were losing by selling racing fuel by the gallon from a drum. What was happening was our staff was filling 5 gallon cans to the top rather than the 5 gallon mark. In essence they were giving away ½ a gallon with every 5 gallon purchase. The net result is we ended up giving away hundreds of dollars away each month.

Now that we have RACE-GAS we no longer sell fuel by the gallon from a drum. The net result is that we are making more money! In addition my customers come back in to the shop more often to buy RACE-GAS giving us more opportunities to sell them products and services.”

Greg Schmidt
VP of Sales and Marketing,
Paradigm Performance
(218) 855-1111

Tesar Engineering and Race Engines
Tesar Engineering and Race Engines

“We were first introduced to RACE-GAS by another engine builder in our area. We tested the product in a high compression Ford 302 race engine. We tested RACE-GAS blended in 93 octane pump gas against 111 octane racing fuel. RACE-GAS produced similar results in peak horsepower and torque as the 111. One difference we did notice is that the in the 5700 to 6400 RPM range RACE-GAS produced more torque and horsepower than the 111.

We used RACE-GAS in 3 Ford race cars in the 2013 Carrera Panamericana in Mexico. All three cars performed flawlessly for the full 2,000 miles of the race! We are very satisfied with the performance of RACE-GAS and now stock the product for our customers” Gary Tesar.
Gary Tesar
Tesar Engineering and Race Engines
(952) 473-0203


“Over the last 50 years I have been asked to test various lubrication and fuel additive products. With one exception most did not perform as they were intended.

Recently I was hired to test an octane improver. To my surprise it not only worked but was downright impressive. The engine I chose for this test was a motor we built for the Popular Hot Rod Engine Master Challenge. It is a 414 CID LS motor designed to run on 91 octane with power approaching 700 HP.

When testing Race-Gas I was being careful watching the data stream for knocking. For the first test I blended 91 octane and Race-Gas to a final octane of 105. This run didn’t even tickle the knock sensors. I was satisfied that the product may be the real deal so I asked for 87 octane blended with Race-Gas to 101. By the end of the day of testing I was very impressed with the performance of Race-Gas and was convinced that Race-Gas is the real deal. Since that first day of testing we have tested Race-Gas against everything from 98 octane to 116 octane distilled racing fuel and in engines as large as a 550 CI at 13.5:1. Every time Race – Gas performed as advertised!”

Myron Cottrell

Dan’s Complete Automotive and Off Road Specialties Performance Center
Dan’s Complete Automotive and Off Road Specialties Performance Center

“A customer brought in a 428 CID Ford Cobra Jet powered Mustang to us that ran terrible and he knew little to nothing about the engine build other than it was fresh. In sorting out the engine we found the compression to be too high for pump gas. The engine was experiencing severe detonation. We added Race-Gas to the tank and the car ran great! The customer has been running Race-Gas in his car for several months with no issues. This experience sold me on the product and I now recommend it to all of my customers who have engines tuned for big horsepower.”

Dan L Mattila
(763) 784-8668


RACE GAS Reseller List


Blending Calculator

The Contigency Connection
Racer Rewards
Engine Rewards
Grassroots Wired Newsletter

Race-Gas® is now partnered with Contingency Connection to sponsor 1,500 amateur racing events, 18,000 drivers and 50 tracks this year! We are racers too! We want to support the amateur racing community and give back to our customers who have supported our brand over the past 10 years!


Click to learn more


Click to learn more


Click to learn more
Official Engine Power Buy Now
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Real Racing Fuel

When blended to the proper ratio, RACE GAS can take your ordinary pump gasoline and transform it into high octane, high energy, track grade racing fuel. RACE GAS will keep you from ever running out of racing fuel.

Designed by racers

RACE GAS wasn't created by some gigantic super company. It was created by gear heads and weekend racers just like you. Real Power knows the importance of high quality racing fuel.


Find out what racers, street rodders and hobbyists are saying about RACE GAS. We've interviewed some of the industries premier experts to see what they're saying about RACE GAS.

Tested Performance

Unlike some other additives, RACE GAS has been rigorously tested by independent laboratories, prominent engine builders, and performance tuners.

What is RACE GAS?

As Seen On TV


Race gas contains many chemicals that fall into three primary groups Fuel Hydrocarbons, Oxygenate, and Organometallic Compounds. Each group of compounds is found in typical gasoline. What makes RACE GAS different are the individual chemicals that were chosen from each group. While our exact recipe is proprietary (patent pending) we can share the family of compounds used and their relative properties.

Fuel Hydrocarbons

Put simply, fuel hydrocarbons are compounds that contain both carbon and hydrogen that, when oxidized (burned), produce water and carbon dioxide. Saturated hydrocarbons have a high octane rating and contain additional carbon atoms which produce more energy during combustion. When combined with certain organometallic compounds, the fuel hydrocarbons in RACE GAS have synergistic effect to produce higher octane ratings than if they are used alone.


Oxygenates are one of the most misunderstood compounds in gasoline. While many have heard of the negative effects of oxygenates like Ethanol and Methanol not all oxygenates are created equal.

Oxygenates play a very important role in high octane gasoline. Like the name suggests oxygenates add oxygen to gasoline. By adding an oxygenate to RACE GAS, it adds crucial oxygen to the fuel which, in turn, creates more efficient combustion and the fuel is burned more completely. This allows the advantage of more energy released by the fuel's combustion of the additional carbon atoms added by the hydrocarbons found in RACE GAS. The net result is more horsepower!

The oxygenates that are used in RACE GAS are not derived from alcohol (like methanol or ethanol) and therefore do not damage fuel system or engine components.

Organometallic Compounds

Organometallic compounds are added to gasoline to increase the octane of the fuel. Up until recently, tetra ethyl lead was used in gasoline for this purpose. In addition lead was used as a lubricant on older engines that didn't have hardened valve seats. The problem with lead in gasoline (other than the environmental effects) was the fact that scavenger compounds needed to be added to gas in order to keep the lead from creating deposits on pistons and cylinder heads.

When the US Government banned lead in gasoline, refiners turned to other metallic compounds like manganese, iron, nickel and magnesium. We believe that manganese has the best effect on octane and the synergistic effect with the other compounds found in RACE GAS. As a result RACE GAS contains the highest quality methylcyclopentadienyl manganese tricarbonyl or MMT.

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