Does the fuel consumption of the car in the rain?

Does a car consume more fuel in rainy weather?

To us in edition the letter in which the author asks us does the rain on the fuel consumption of the car? That’s what what letter comes to us. We also propose you to look at the answer.

Yesterday my wife asked me this question, and I couldn’t get him the answer.
For example, suppose a car moving on a Sunny day on the route, consuming x liters per 100 km. Next, imagine that this same car with the same air pressure on the street under the same windy conditions on the same road will move in the rain. I wonder will the rain on the fuel consumption? If so, in what direction?
 
On the one hand, in the rain the car tires experience less friction. So logically the car should use less fuel in wet weather. But, on the other hand, rain is a barrier to a moving vehicle. Accordingly, the car will experience more resistance to motion that will ultimately lead to increased fuel consumption. In General, I answered that in the rain the car to consume more fuel than on a Sunny day. But I’m not sure. Please tell me, am I right?

So here’s what is really going on with your car in the rain:

During rain the roads tend to form puddles. Driving through puddles on a wet road, there is an additional energy loss as the tire treads have to exert more effort to divert water from the wheels.

The fact is that actually on a wet road the wheels do not slip, and are constantly immersed in water, meeting with the road surface. The slide begins when the wheels can’t cope with tap water (aquaplaning). So driving on wet roads (for example, through puddles) than like moving with a slight upward bias.

Sorry to answer the question, how much fuel consumption increases in rainy weather is not possible, because of the need to consider many factors, ranging from speed, to the engine size of the car, its weight, aerodynamic characteristics, wind speed, road slope, atmospheric pressure and tire pressure, and many other factors that affect the total fuel consumption of the vehicle. And, to really bring out the exact percentage of the increase in fuel consumption necessary to carry out long complicated calculations.

By the way, the density of water on the road can be quite different. It all depends on what impurities it has. You understand that if on the way someone spilled resin during the rain water in the puddles will be more adhesive, which ultimately will affect your vehicle as it will need more energy to move.

Including do not forget that during the rain the air humidity can also strongly affect the aerodynamic drag of the vehicle. And here all of course depends on the atmospheric pressure and wind speed.

But generally, if in the rain you will go at high speed, in most cases, the humidity, and do drops of water will worsen the aerodynamic drag, which ultimately affect the total fuel consumption.