Diesel engines are finicky eaters. At the slightest hint of fuel-borne water, air or contaminants, their spirits droop, leaving drivers with less performance and lower fuel mileage. Obviously, the ...

Chances are, there’s water in your fuel right now. If it’s left there in cold weather, we all know that your fuel system will freeze and stop your truck dead. But in any weather, water also diminishes ...

Never fill new filters with fuel before installation (you'll pour in dirt). Fuel-tank breathers stuffed with porous filtering media, or vented tank caps with no breathers, pull in lots of contaminants ...

As oil prices have increased, interest in downhole oil-water separators (DOWS) has returned after a 2-year lull caused by a low oil price and the nervousness of operators to install relatively ...