Rural Metro Ambulance
Since using Enertech Labs Complete Fuel Treatment in my 6.0L Ford vehicles, I have not had any soot related issues.
Rural Metro Medical Services:
Bruce, Fleet Manager

EGR Coking – Fix with Enerfuel
Enerfuel With Lubricity removes water, makes the fuel burn better and lubricates fuel system components. This eliminates coking and clogging of all exhaust components.
Cleaner burn = Cleaner Engine.

GAS RX
Water in ethanol gasoline causes corrosion and engine damage.
Gas Rx will – Eliminate Water, Clean Fuel System, Improve Performance. Use GAS RX to stabilize gas and improve performance.

Octplus
Use Octaplus to clean fuels systems, carbon deposits and emission components. Octaplus is the best product for stabilization and engine clean up.