What are MPG-CAPS and what are the benefits?

MPG-CAPS are a multi-functional fuel additive that combines and compresses well established active ingredients into a fast-dissolving Caplet. When added to gasoline or diesel, MPG-CAPS completely dissolves and thoroughly mixes with the hydrocarbon fuel to:

• Increase Octane and Power

• Reduce smoke and harmful emissions

• Help to improve fuel economy

• Keeps the combustion chamber clean

• Acts as a lead substitute, if needed

• Clean injectors

Are MPG-CAPS safe for use in all gasoline and diesel engines?

MPG-CAPS are a safe and effective for all gasoline, ‘flex fuels’, ethanol blended gasoline, diesel and bio diesel. The MPG-CAPS chemistry promotes and improves combustion of hydrocarbon fuels. That means that MPG-CAPS produces a more complete burn which results in improved engine efficiency and reduced emissions.

How do the MPG-CAPS differ from the typical highly diluted bottled products designed for the same purpose?

Most bottled products start out with the same active ingredients as MPG-CAPS powdered or granulated fuel detergents and combustion additives that are then dissolved in a carrier fluid. For fuel products, the carrier might be something like paint thinner or diesel fuel. For coolant and windshield products, the carrier is water. The resultant tablet alternative may weight 3 grams or less and provide all the benefits of a 12 oz. - 1 gal. bottle that contains up to 98% or more carrier fluid.

How rapidly does a standard one gram MPG-CAPS tablet dissolve?

Depending on the aromatic quality of the local gasoline or diesel, MPG-CAPS will completely dissolve in 25 to 40 minutes after being added to the tank.

How can the same Cap be used in both gasoline/petrol and diesel?

The combustion process for any type of hydrocarbon fuel is essentially the same, particularly when involving an internal combustion engine. MPG-CAPS chemistry improves the combustion of this fuel irrespective of the engine type. That means gasoline or diesel engines get more of a complete combustion which results in more power, less smoke and emission and increased fuel economy.

How often should I use MPG-CAPS ?

For maximum benefit, use the recommended size of MPG-CAPS with each and every fill up. MPG-CAPS improves the fuel, so when the fuel from that fill up is gone, so are most of the benefits of MPG-CAPS

Do the MPG-CAPS increase octane?

One of the benefits of MPG-CAPS is an increase in octane. One regular one gram tablet in 60 liters/16 gallons of gas will, on average, increase octane by a noticeable 6 to 8 points. The improvements are greater in gasoline that is low in octane. Such low octane gasoline can be found in many markets outside of the U.S. and ‘old’ Europe.

What kind of fuel economy improvement might I expect?

With the use of MPG-CAPS formula, it improves combustion. Improved combustion results in more power and greater economy. Drivers who continue to drive in the same manner should experience improvement of 8-12 percent in fuel economy. Since 2005, the testing proves that there is an improvement in the combustion. We occasionally hear of users who drive more aggressively when experiencing the additional power and performance provided by MPG-CAPS . Users with such aggressive driving habits will in fact experience poorer fuel economy.

I sometimes buy a competitive octane boost in a 12 oz. bottle. What is the difference between that product and the MPG-CAPS and other Octane Booster products?

In terms of net octane increase, MPG-CAPS delivers a greater octane increase than most bottled competitors cannot achieve. And the cost is generally much lower. Bottled products use a similar chemistry of active ingredients that actually does the job of raising octane, however, those ingredients are dissolved in a carrying fluid like diesel or petroleum solvent (paint thinner) and then the cocktail is bottled. MPG-CAPS compress those same ingredients into a tablet which dissolves quickly and completely when added to fuel.

My car is ten years old and seems to NEED higher octane. Why?

As it ages, your engine REQUIRES greater octane in order to perform at the SAME level as it did when NEW. That phenomenon is called Octane Requirement Index (ORI) and happens to all engines as they age. There are many reasons -- wear and erosion of fine engine tolerances, deposits within the combustion chamber and in the fuel delivery system are the two most pronounced. When this happens, higher octane gasoline is required to get the same engine performance as you had when the vehicle was new.

Europe offers 92 and 96 octane gasoline. Why is octane so much higher there than in the U.S.?

The octane sold at retail is the same in Europe as in the United States. They do, however, calculate and post the number differently. Gasoline octane in the U.S. and other North American markets post the average of the two test protocols used for testing octane. The average between the Motor Octane Number (MON) and the Research Octane Number (RON) is the number posted on the pump. This compares to Europe and many Asian and African markets where the RON measurement is the same number posted on the pump. So, while there appears to be an actual difference in octane, there is, in fact, only a different protocol to figure the number. For example, 91 Octane in the U.S. is probably identical to 96 octane in Germany.

The MPG-CAPS vs. a competitive bottled octane booster claims to increase octane 6 points. Which is better?

Each 10 “points” of octane add up to one “number”. So, if a bottled octane booster claims to add 6 points, addition of that additive to 91 octane gas will result in 91.6 octane. However, if two MPG-CAPS are added to 91 octane gasoline, the resultant 2 “numbers” will bump it to 93 octane!

How important is octane?

Correct octane is one of many elements that lend it to getting all the performance, economy and power from you engine. But increased octane is what the performance buffs and people in the know want. They know that higher octane means faster, smoother acceleration and pick up. And, many cars specify high octane fuel requirements in their owner’s manual. Most modern engines that utilize high compression ratios and fuel injection require reasonably high octane to even get those engines running.

I have a 1964 Oldsmobile 442. With regular gasoline, the car seems to run very poorly. Why?

Most of the classic ‘muscle’ cars required high octane gasoline. Those engines were designed for full leaded “Ethyl” or “High Test”. Today’s gasoline is a far cry from what those muscle car owners could buy at the pump. Use of MPG-CAPS goes a long way in recreating that power and performance from many of those vintage engines.

I have an older Harley that is designed for leaded gasoline and, absent that, requires a “lead substitute”. Do I break a piece off of a caplet and use that and does it supply the protection of lead?

MPG-CAPS fuel caps act as a "lead substitute". For U.S. sized motorcycles, MPG-CAPS offer a specially sized tablet.

The owners manual of our new vehicle says not to use anything containing octane booster MMT methtlylcyclopentadienyl manganese tricorbonyl or maganese based compounds. Please advise if the MPG-CAPS contain either of these ingredients.

MPG-CAPS do not contain manganese (MMT) or manganese based compounds.

MPG-CAPS FAQ's