EXHAUST GAS RECIRCULATION (EGR) VALVES 

The purpose of Exhaust Gas Recirculation Valves, or EGR Valves, is to reduce emissions by recirculating the exhaust through the engine rather than expelling it directly through the exhaust system. This recirculation creates a cooler running engine, limiting NOX, but also results in a less efficient combustion cycle by reducing fuel economy and increasing unburned fuel, or diesel particulate matter (DPM).

DIESEL PARTICULATE FILTERS (DPF)

When the exhaust is finally expelled from the engine it is sent into the DPF. DPFs catch the soot and limit the amount that can be expelled into the atmosphere. Over time the DPF plugs with soot and causes back pressure to the engine which lowers its’ efficiency. This triggers  “regeneration mode,” also known as a regen. When an engine goes into regen it increases the engine rpm’s which raises the temperature of the DPF to about 1100°F. Simply put the engine uses an increased amount of fuel to raise the temperature and burn the DPMs out of the filter.

Selective Catalytic Reduction (scr)

The Selective Catalytic Reduction is designed to eliminate the noxious “greenhouse” gases like NOX and also helps in that the engine does not need to rely on the EGRs as much. The SCR works with Diesel Exhaust Fluid (DEF) whose main ingredient, urea (which turns into ammonia when misted into the SCR), combines with the noxious fumes to create harmless water and nitrogen rather than poisonous gases. However, if the DEF is low, the vehicle can go into “limp mode,” causing the vehicle to only drive as fast as 5 mph. Lastly, when out of DEF most systems will not allow the engine to turn back on once it has been turned off.

 With this more efficient combustion cycle, less DEF is used, there is an increase of fuel economy of about 5-8% or more, and an increase in power and engine responsiveness. Fuel Ox will also lubricate your upper cylinder heads and injectors, replacing the lubricity agents missing in today’s’ ULSD, while also breaking up any carbon deposits or build-up on the EGR valves. In fact, there are many video testimonials of people in different industries experiencing a massive reduction in regens and other emissions problems here. Prevent the headache of DPFs, regenerations, parts replacements and repairs, and costly downtime by picking up a bottle of Fuel Ox to alleviate many of your EGR, DPF, and SCR problems.