Skip the auto shop - Our mechanics make house calls

Q: What's Dry Gas?

asked by on

What's dry gas?

Dry gas, or Drygas, is an alcohol based fuel additive. Its purpose is to remove excess water from gasoline by absorbing the water and burning it off in the combustion chamber. It also prevents water in gasoline from freezing by acting as an antifreeze. The presence of water in gasoline is considered a contaminant that can cause corrosion, freezing, and decreased combustive power. This contaminant has the potential to cause considerable damage to the fuel tank, fuel lines, and other engine components. Water contaminated gasoline can cause rust and corrosion in the components of the fuel delivery system. Corrosion is capable of creating holes in the fuel tank and weaken the fuel lines and metal fittings. Gas leaks have been known to happen as a result of corrosion. It is also possible for debris to clog fuel injectors as a result of water in gasoline. Excessive amounts of water in gasoline has the potential to freeze up fuel lines and is most common in areas where temperatures reach freezing levels or below. This may cause an engine hesitation or no start problem if water freezes and gasoline isn’t able to flow through the engine. When the presence of water in gasoline is considerably high, the fuel does not burn well and combustive power is reduced. This may cause a stalling condition if water contaminated gasoline sits in the combustion chamber.

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1000 mechanics are ready to answer your question.
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details
  1. Home
  2. Questions
  3. What's Dry Gas?

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing

Get a quote

What others are asking

Q: 2014 Ford c max hybrid

The “check fuel fill inlet” warning light means that there is a problem with the fuel tank fill seal. The seal could be missing, loose, damaged, distorted, or there is debris in the fuel fill inlet, and/or there is a...

Q: How do I control the fuel efficiency backlight?

You can choose to have your fuel efficiency reading be backlit. To control whether or not it is backlit, follow these steps: 1. Turn the ignition to On, while making sure the vehicle is completely stopped. 2. Press the Menu...

Q: Whats antifeeze better in bmw e61, g11 or g12?

Antifreeze for the vehicle needs to be safe for aluminum radiators or you will have problems of corrosion and metal damage if it is not safe for use in the aluminium radiator cores and heater cores. When you purchase the...

Related articles

How Long Does a Heater Control Valve Last?
Keeping the right amount of coolant in a car is essential in keeping the engine at the right temperature. Failing to have the right amount of coolant or even bad elements...
Rules of the Road For Iowa Drivers
Driving on the roads requires knowledge of the rules, many of which are based on common sense and courtesy. However, even though you know the rules in...
How Much Does a Mechanic Make in Vermont?
Automotive technician jobs in Vermont have an average mechanic salary of $37k, with some mechanics earning a salary of $53k.