The quality of most gasoline and diesel fuels does not provide enough protection for the fuel system components. This is because fuel system deposits can form quickly (within 5,000–10,000 miles/8,000–16,000 km) on fuel injector pintles, intake valves and in the combustion chamber, robbing the engine of power and performance.
Nitrogen-based, ashless, high-molecular weight detergent/dispersant additives can control deposits through the fuel system, from the injector to the combustion chamber. These additives can be identified and quantitated (how much) using this simple test kit.
Many fuels claim they contain deposit control additives. Now you can check for yourself!
PROCEDURE
For Gasoline and Diesel
Pour 10 mL of fuel into the titrating vial.
To the fuel, add five drops of DCA Indicator B and swirl to mix. A blue/purple color indicates that deposit control additives (DCA) are present.
The concentration and treat level can then be determined by adding Titrant A one drop at a time (swirl to mix each drop before adding another drop) until the end point is reached, which will be a sharp color change from blue/purple to yellow.
Count the number of drops of Titrant A used to effect the color change and compare to the chart.
| 1–4 | Keeps fuel injectors clean. |
| 5–9 | Keeps fuel injectors and intake ports clean. Cleans fuel injectors in 250–1,500 miles/400–2,400 km. |
| 10–15 | Keeps entire fuel system clean. Cleans fuel injectors in 250–1,500 miles/400–2,400 km. Cleans intake ports and valves in 2,500–7,500 miles/4,000–12,000 km. |
| 16+ | Keeps entire fuel system clean. Gives rapid clean-up of entire fuel system in 250–1,800 miles/400–2,900 km (1– 6 tanks of fuel). |