Since fuel is an organic material, it begins to age and deteriorate the minute it leaves the refinery. By the time you put "fresh" fuel in your tank, it has already aged considerably. Fuel continues to age as it sits in your tank, but worse yet, this aging process is accelerated during combustion.

  What's Wrong with Aging Fuel?

   Some things age gracefully, but fuel doesn't. During the aging process, masses of carbon, gum, and resin form in your fuel. These masses become too large to burn completely, and the combustion process is compromised. The photograph at right shows a "fresh" fuel just prior to combustion. Notice the dark areas, where such masses have formed in the fuel. These masses will not combust completely.

  So what is the result of this aging process and incomplete combustion? Your engine does not perform as designed. Fuel burns less efficiently. Energy and power are lost. Fuel efficiency is reduced. The unburned matter forms abrasive, damaging deposits on your engine and fuel system. In the end, your engine delivers less and wears out faster.

  The Solution: Stabilizing your Fuel

  To solve this aging problem, we look at why fuels age in the first place. Fuels age because they become "chemically unstable". During transportation, storage and use, fuels are exposed to oxygen and heat. This exposure causes the atoms in the fuel lose their balance (i.e. become unstable), molecular reactions take place, and the aging process begins. This happens to all fuels, even today's reformulated "clean" fuels.

  The good news is, this aging process can be halted and even reversed. If the fuel is kept in balance - kept "chemically stable" - then aging does not occur. This is exactly what PRI Fuel Treatments do! This is why PRI Fuel Treatments are referred to as "fuel stabilizers".

  PRI Enhanced Fuel Stabilizers

   PRI’s unique, stability enhancing chemistry reacts with your fuel immediately upon contact. It works chemically within the fuel to keep it at peak stability during combustion and throughout storage. With the aging process halted, the masses of carbon, gum and resins do not form. Your stabilized fuel performs better, and therefore, so does your engine.

   This second photograph shows the same fuel as above, only this time it has been treated with PRI stabilization chemistry. Notice how the fuel is now free from the agglomerations of carbon, gums, resins, and other unburnable matter. Stabilizing the fuel has made a dramatic difference: this fuel will burn cleaner and more completely.

   By treating each and every tank of fuel with PRI’s stability enhancing chemistry, you will enjoy multiple benefits:

• More power from your engine as your fuel is combusted more completely

• Increased fuel economy as fuel is being used more efficiently

• A cleaner engine and fuel system as deposits are prevented from forming

• Reduced maintenance costs as a cleaner engine runs better and longer

• Extended engine life as components’ life spans are extended

  Stabilizers VS Additives:

   Why not just use a traditional fuel additive? We have found that enhancing stability is the best way to get the most out of your fuel. Traditional fuel additives seek to improve combustion, but they do it by changing your fuel, boosting cetane or octane, or adding foreign ingredients. This approach can cause an engine to run differently than it was designed to (e.g. hotter) and can even cause long-term engine damage. Enhancing stability gets the job done safely, without altering your fuel or your engine. Furthermore, stability enhancement provides its benefits during storage too, something traditional combustion improving additives do not do.

  PRI: #1 In Gasoline Stability!

   The industry-accepted test method to determine the oxidation stability of gasoline in its finished form is the ASTM D-525-98 (Induction Period Method). In this test, gasoline is placed in an oxygen charged steel pressure chamber known as a "bomb". The "bomb" is heated, and pressure within is measured over time.

   When the gasoline begins to absorb oxygen (becoming oxidized and unstable), the pressure drops. Hence, the longer the pressure is maintained, the more stable the gasoline. Time measurement is in minutes. In this test, we chose Chevron gasoline already treated with Techroline® - one of the most stable fuels on the market. Our objective was to show the degree to which PRI-G can improve an already excellent gasoline - hence providing maximum performance with the least amount of carbon deposition.

  Stability and your Fuel

   Not only does PRI-G enhanced fuel stability, it also restores aged fuel to usability! In the next test, we took 15-year old gasoline to show how PRI-G can actually restore the stability of old gasoline within acceptable levels. The 930 minute range will provide decent ignition quality with minimal deposits. Many fresh gasoline's fall within this range.

  For more information about PRI-G/D see these information pages: