Gasoline can become contaminated with water because of condensation in fuel storage tanks and in your gas tank. Water is denser than gasoline and will sit on the bottom of the fuel tank until the level of fuel gets low; then the water can be sucked into the auto fuel lines and damage your engine. There are several ways to prevent water from getting into your fuel line. Mechanical devices separate the water from the gas, and chemical fuel additives can remove water as well.
Fuel additives to remove water from your gas tank and fuel lines are different types and concentrations of alcohol. Isopropyl alcohol, ethanol and methanol are all used to remove water from fuel. For best results, add the fuel additive before filling the gas tank with fuel. That way the alcohol will start to absorb the water in the tank right away. Alcohol can absorb water and hold it in suspension. The fuel additives available for automotive use will hold up to 50 percent water in solution before separating back out from the excess water. The alcohol removes the water by passing the suspended water molecules through your engine and out the exhaust.
In tropical climates many automobiles are fitted with filters to trap the water before it can get into the engine fuel line. Some of these are similar to the fuel filters found on your car now and need replacing at regular intervals. Diesel-powered vehicles also are equipped with water-trapping filters. Other filters have a bleeder valve on the bottom to drain out accumulated water and other contaminants. Opening the valve and allowing it to drain until only fuel comes out will remove the water contaminant. These filters are important in areas with constant high humidity because condensation in the fuel storage tanks and in auto fuel tanks occurs more frequently.
It may sound a little unorthodox, but WD-40 will remove water from your gas tank. Put one ounce of WD-40 per gallon of gas into the tank before filling it. The name WD-40 means water displacement fortieth attempt. Norm Larsen invented the product in 1953 to prevent corrosion by removing the standing water that causes it. His fortieth attempt was successful, and so the product is called WD-40.
- Photo Credit water splash - bottle and water in a moment image by Stasys Eidiejus from Fotolia.com
Symptoms of Water in a Gas Tank
Water can enter your vehicle's gas tank in various ways, such as if you leave the gas cap off during rainy weather...
How to Repair a Fuel Line in a Car
Fuel lines develop leaks when part of the line rubs against anything metal under the vehicle. Typically the frame rail is responsible...
How to Remove Water from Gasoline
It's difficult to determine how water gets into a vehicle's gas tank, but once it's there explanations are almost irrelevant. The most...
How to Use Dry Gas to Prevent Water Buildup or Icing in Your Gas Line
I think most of us are familiar with the ill effects that excess water buildup in your car's gasoline or gas tank...
How to Keep Moisture Out When Auto Painting
Putting down a nice paint job on that project car you've been working on is hard enough without having the aggravation of...
How to Thaw Frozen Fuel Lines
Odds are pretty good that you have never in your life seen frozen gasoline. Gasoline is a mixture of a lot of...
How to Remove Water From a Fuel System
Water in a fuel system means big problems for an internal combustion engine. Even small amounts of water can cause an engine...
How to Start a Car With a Fuel Line Freeze Up
Your car won't start in cold weather if water or condensation gets into the fuel line and freezes there. Frozen fuel lines...
How to Remove Water From Diesel Fuel
Water causes corrosion within a fuel delivery system of a diesel vehicle. The corrosion blocks the diesel injectors, reducing the amount of...
How to Remove Water from a K-1 Kerosene Fuel Tank
K-1 kerosene is a hydrocarbon compound closely related to K-2 kerosene, diesel fuel and jet fuel. It is commonly used in both...
Adding WD40 to Gas
WD-40 is a lubricant that has a number of uses, including lubrication, cleaning and rust prevention. Some automotive enthusiasts also advocate putting...
Signs of Water in Fuel on Boats
Water can enter the fuel lines of a boat in a number of ways. Because boats are operated solely in water, their...