Month: January 2026

Chemical fuel additives don’t actually remove water from diesel the way mechanical systems do. They only manage water through two opposite methods: emulsifying it or separating it. 1. Emulsifiers / Dispersants (“Water Removers”) These break water into microscopic droplets and suspend them in the fuel. The water then passes through the system and is burned… Read more »

A diesel tank water absorber is a simple, passive device placed inside a fuel tank to physically soak up and trap water so it can’t mix with your diesel, cause corrosion, or damage injectors. It’s essentially a specialized absorbent “sponge” engineered to capture a specific amount of water and then be removed and replaced once… Read more »

Fuel polishing and fuel maintenance are related concepts in the context of stored fuels (especially diesel), but they differ in scope, frequency, and approach. These terms are most commonly used for backup generators, marine vessels, emergency power systems, or any application where fuel sits in tanks for long periods and can degrade. What is Fuel… Read more »

Eliminate water first (the primary enabler of microbial growth—”diesel bug”). Use water separators, polishing systems, or tank drainage. Reserve biocides for active infections: Apply at maximum recommended strength to eradicate the problem, then discontinue routine use. Biocides are often halogenated and corrosive—overuse risks damaging components like seals, pumps, and injectors. https://dieselcraft.com/portable-fuel-polishing/

Water is widely regarded as the #1 enemy of diesel systems. Even small amounts—especially free water—trigger a destructive chain reaction that affects tanks, fuel lines, pumps, injectors, and the engine itself. In essence, water doesn’t just sit harmlessly—it creates a snowball effect of degradation, especially in stored, standby, or infrequently used systems (generators, marine vessels,… Read more »

Water contamination is one of the most common and damaging issues in diesel fuel storage and use. Diesel—particularly modern ultra-low sulfur diesel (ULSD) and biodiesel blends—is hygroscopic, meaning it naturally attracts and absorbs moisture from the surrounding air at a molecular level. This makes water ingress almost inevitable over time, especially in stored fuel. Water… Read more »

The U.S. Navy conducted formal testing on magnetic fuel conditioning technology using heavily aged #2 diesel fuel. The tests involved recirculating the fuel through a fuel polishing system. This integrated system combines mechanical filtration with magnetic fuel conditioning technology. Key results from the published Navy fuel analysis report are summarized below: MMI Engineered Systems Division… Read more »