How does water get into your fuel?

What in diesel fuel?
September 19, 2020

Water is common in diesel fuel systems. How does water get into your fuel? To begin with, diesel fuel is mildly hygroscopic; it attracts and absorbs moisture from out of the air. Also, water often enters the fuel system from poorly maintained storage tanks at diesel fuel retailers. If water is not removed from the fuel system regularly it can cause numerous issues including rust and corrosion, icing in winter months and microbial growth. Knowing that water is an issue, as an additive manufacturer, a water dispersant is added to all our diesel-only fuel products to aid in keeping water out of your expensive engine components.

Water contamination of diesel fuel is such a concern that most diesel vehicles are equipped with a water separator in the fuel filter assembly or elsewhere in the fuel system. Some water separators have detection sensors that let the vehicle operator know when it is time to drain the separator. The water separator must be drained at regular intervals as part of routine diesel engine maintenance, and more often if higher levels of water contamination occur.

Two types of water dispersants are available – emulsifier and demulsifier. An emulsifier works to bring the water and fuel into one solution, not separating. While a demulsifier separates the water from the base fluid into two liquid bodies.

Wouldn’t you want to emulsify the fuel and water together and get it out of your tank? You might think at first, but that is not the case with diesel engines. The high pressures at the injector tips will turn the water into steam and can explode the end of the injector tip off, costing you hundreds of dollars to replace the injector. Emulsifiers have a place in gasoline applications where they can be extremely helpful.

Hot Shot’s Secret uses a demulsifier in Diesel Extreme, Everyday Diesel Treatment, Diesel Winter Anti-Gel and Premium RV Diesel Additive. The reason is simple, it is the best for your vehicle. A demulsifier is a higher price chemical, but we want the best for our customers. Once the demulsifier aids in settling the water to the bottom of the mixture the fuel filter and water separator do their jobs effectively to eliminate the water from the equation. In addition, we add a rust and corrosion inhibitor to keep any water from causing problems down the road.

All of our fully formulated additives are based on science. Therefor we treat all shortfalls of pump diesel including a cetane booster, injector cleaner, fuel stabilizer, lubricity improver, rust & corrosion inhibitor and water demulsifier in our products. Get the maximum performance out of your diesel while protecting the life of your engine with Hot Shot’s Secret products.