Testing Techniques and Protocols
BACKGROUND AND BASIC
of the Additive
GTA Fuel Enhancer is a 100% hydrocarbon liquid containing a high molecular weight polymer. This polymer when mixed with gasoline or diesel changes the physics of air-fuel mixing. The elastic response of the polymer forces gasoline and diesel fuel, when mixed with air, to form uniformly sized droplets (see Sauter Mean Diameter Test). These uniform particles burn more efficiently and cleanly.
Note on Mixing Devices
DO NOT USE HIGH-SPEED MECHANICAL MIXERS TO CREATE TEST SOLUTIONS. Such devices will shear the long molecules of the active ingredient, and reduce or even nullify the effects of the additive. Even though mechanical devices may damage the polymer, field tests of more than sixty vehicles have not indicated that automobile or truck fuel pumps reduce the effectiveness of the additive.
of a Solution
Once the additive has dissolved in gasoline or diesel fuel, it will remain in solution indefinitely. The polymer, which is the active ingredient, will remain dissolved even below the freezing point of the fuel.
a Homogeneous Solution
The high molecular weight polymer, which is very cohesive, will sink to the bottom of a container of fuel if not properly mixed. One must, therefore, understand how to create a homogenous solution to assure proper testing. To do so, observe the mixing of the concentrate by pouring about ten drops of it into a quarter of gasoline (one liter) in a transparent container. Watch it sink to the bottom. Then cap the container, and gently rock it back and forth. The mass of polymer should break up, and dissipate evenly throughout the gasoline. This demonstration will indicate the degree of agitation needed to create a homogenous solution. Shaking will not damage the polymer. To mix the concentrate with diesel, agitate the fuel as you would for gasoline.
If the engine is small (such as one used for a motorcycle) and the protocol is short, five gallons (18.94 ltr) of fuel should suffice for two dynamometer tests. A homogeneous additive solution for the first test can be conveniently prepared by using a syringe (without a needle). A syringe works well for accurately measuring volumes down to half a fluid ounce (14.80 ml). Use a syringe to mix a container of fuel: 0.5 fl. oz. (14.80 ml) to five gallons. Please note that a test should use exacting measurements, but the polymer is effective over a wide range to ratios.
Run a dynamometer twice
using untreated fuel recommended by the engine manufacturer. YOU MUST TAKE
UNTREATED FUEL MEASUREMENTS BEFORE USING THE ADDITIVE. IT WILL TAKE A
CONSIDERABLE AMOUNT OF RUNNING WITH UNTREATED FUEL TO PURGE AN ENGINE OF ALL THE
BENEFICIAL EFFECTS OF THE PRODUCT. TEST THE EFFICIENCY AND EMISSIONS OF AN ENGINE
BEFORE USING THE ADDITIVE.
Run a dynamometer twice with
0.5 fl. oz. (14.80 ml) of additive to five gallons (18.94 ltr) of gasoline. The
two runs mitigate the effect of run-specific anomalies, and increase the chance
of reproducing test results.
Direct-Injection Engine Testing
After the control tests, use 0.33 fl. oz. (9.87 ml) of additive to five gallons (18.94 ltr) of diesel.
Indirect-Injection Engine Testing
About a dozen indirect injection diesel cabs in London used using the additive for several weeks. The engines in the new cabs only performed better after diluting the solution to about 0.25 fl. oz per five gallons (7.40ml/ 18.94 ltr). Follow the same procedures used for testing gasoline, but after the control test, start at 0.25 fl. oz.(7.40 ml) of additive to five gallons (18.94 ltr) of diesel and work up to 0.33 fl. oz. (9.87ml).
Gasoline Engine Testing
Mix the recommended amount of 2-stroke oil with the type of gas prescribed by the engine manufacturer. For higher-end engines such as those used in motocross motorcycles and personal watercraft, use at least 25% more 2-stroke oil when using GTA Fuel Enhancer. It causes an engine to burn more of its fuel thus leaving less lubrication near the exhaust port. Use the same proportions of additive-to-fuel that you would for a 4-stroke engine (0.5 fl oz. per five gallons or 14.80 ml/18.94 ltr).
The product demonstrates its
greatest effectiveness during throttle transition, the time between a change in
throttle position and the re-balancing of the air/fuel mixture and RPM levels. A
good part of this improvement can be attributed to the fact that the additive reduces
wall wetting (see hyperlinks), which permits more fuel to stay suspended in air
as in enters the cylinder. GTA encourages you to design a protocol to examine
this feature of GTA Fuel Enhancer.
GTA Fuel Enhancer will also improve
horsepower and efficiency at lower RPM levels especially under high load. The
additive will reduce emissions to varying degrees at all RPM levels, but will
contribute little to horsepower at the high RPM range.
With these features in mind, tailor your tests to examine the best performing areas of GTA Fuel Enhancer. At a minimum, time-resolved torque and throttle position data should be obtained. It would also be useful to compare associated exhaust emissions data.
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