RIVETT COUNTY, Calif.
— A few years ago, a few friends started going on gas-powered trips and they noticed a strange phenomenon.
When you pulled out your gas pump and hit the gas, the engine would stall.
“It was just like a loud thud,” said Andrew, who has been a gas pump driver for nearly 10 years.
But it’s now been proven that if you pump a lot of gas, your car will slow down and even stall when it’s not being driven hard.
“It’s actually a lot more subtle than that,” Andrew said.
In a new study published in the Journal of Experimental Automation, Andrew and colleagues at the University of California, Berkeley, looked at how gas pumps react to different amounts of pressure, and found that when a pump is full, it stops operating at the speed of sound, and stops accelerating at the same speed.
Andrew and his colleagues found that a pump with a high capacity and a large volume of fuel can stall the car, while a smaller, less-capacity pump can increase acceleration to the point where the car stalls.
The researchers also found that the speed at which the pump starts moving, or stops moving, varies greatly depending on the type of gas it is.
For example, a pump that pumps in ethanol has a higher capacity, but its speed increases linearly with its volume, which means that a very small amount of fuel will slow the car down and a lot will accelerate it up.
A more typical gas pump, on the other hand, has a much lower capacity, and is slower moving at a similar speed to a larger pump that has a larger volume of gasoline.
Andrew’s team found that if a gas pumping station was well-populated with large volumes of fuel, it would actually stall the vehicle in a similar way that a gas car does.
Another example of this phenomenon is when a gas tank is filled with fuel.
If the pump is empty, the car can accelerate at the normal speed, but if the pump has enough fuel to fill the tank, it can accelerate faster, Andrew said, and it’s a lot like when a car has a lot less speed.
“It makes sense that if there is enough fuel, the pump will be able to keep moving at higher speeds,” Andrew explained.
When the researchers tested how a gas vehicle would stall, they ran the cars on two different types of fuel — a conventional oil-based gasoline, and diesel-based diesel fuel.
The researchers found that with both types of gasoline, the vehicle was able to accelerate significantly faster when it was running on diesel fuel, and the same thing when it ran on gasoline.
For example, when the researchers used a standard car, the team was able, on average, to accelerate an average of 6.3 miles per hour.
When they ran on diesel-powered diesel fuel with more than 6 gallons of diesel fuel in it, the average speed increased to 14.1 mph.
The difference in acceleration between gasoline and diesel is important, Andrew explained, because the difference in fuel pressure increases the vehicle’s speed, which increases its weight, which reduces its stopping distance, which results in it stopping less frequently.
Although Andrew believes the difference is small, he is still amazed by the difference.
“You can get an average speed increase of about 2 miles per gallon, but the difference between that and a gasoline car is like doubling the speed,” he said.
“The biggest problem with a lot the research is it doesn’t really account for the physics of it,” Andrew added.
That’s because it takes a lot to make a car stall, and that’s why a lot, if not all, of the research on stall is based on laboratory experiments.
For instance, Andrew’s study looked at the behavior of a fuel tank with just about two gallons of fuel.
When the researchers drained the tank of fuel and put the vehicle into the parking lot, they found that it stopped almost immediately.
When a larger tank was used, it continued to move.
Because the research hasn’t been done on gas pumps, Andrew is only able to say that he is aware of a few gas stations that have stopped cars.
So, how can you avoid getting a stall when you pump?
Andrew suggests that if the gas station is well-established, and has a well-defined pump schedule, you can simply get out and have fun while driving.
“That’s actually been shown to work pretty well,” he explained.
“People just need to be aware of the times they have to stop and change their driving patterns, and don’t expect to stop as quickly as they should.”
Andrew’s research is the first to take a look at stall in a gasoline vehicle.
The research team is currently working on other experiments to see how they could make a similar experiment with diesel fuel to see if there are any similar effects.