Qianyu is not sure how long cooking oil can make a gasoline engine run, because the previous research information on cooking oil only has the diesel engine version.

In that study, cooking oil successfully drove the diesel engine, and the operation was barely normal. However, the thick cooking oil quickly clogged the engine, and the researchers had to spend a lot of effort clearing the blockage.

Now, it's time to pour the cooking oil into the gasoline engine...

After Qianyu sighed, he bravely went to the kitchen.

It is true that cooking oil can be used directly in engines, but it needs to be heated to close to the boiling point before it can be compression ignited. The principle of gasoline engines is probably not much different.

"Are you really going to pour the cooking oil directly into the engine?" A playful tone suddenly appeared behind Qian Yu who was about to pour the cooking oil into the pan.

"!" A look of surprise flashed across Qian Yu's face, but when he turned to the speaker, his expression had turned into indifference.

"Any advice?"

"Add baking soda, filter, take the middle liquid, and then decide how much cooking wine to put in depending on how many lives you have." Haiyuan Ai said calmly. "Biodiesel is more reliable than cooking oil."

"Thanks." Qianyu took out a bottle of baking soda from the cupboard.

"Anyway, be careful later." After Hui Yuan Ai said this, he immediately added, "It doesn't matter if you blow yourself up, but it won't be fun if you blow us up."

"Don't worry about it..." Qian Yu was just mid-sentence when the lights in the kitchen suddenly dimmed.

"Again?" Qianyu's expression turned angry. "I'm afraid another life has been lost."

"This is..." Haiyuan Ai's face turned to fear. "It's not good!"

"Boom!" The sound of violent water hitting the wall reached the ears of the two people.

Before the two of them could realize what had happened, the rushing water had already rushed into the kitchen, dragging the two of them into the raging torrent.

Driven by the rapid current, the two of them bumped into something and were blocked. After a moment, the thing was also swept away, and the two of them were swept up in the water again.

The surrounding turbulence was so chaotic that Qianyu couldn't tell the difference between up, down, left, and right, so he had no way to adjust his posture and get out of the water to take a breath. He could only hold his breath in the water, begging for the water flow to stabilize as soon as possible.

...

When the surrounding water environment became relatively stable, Qianyu, who was almost suffocating, determined his up, down, left, and right, and then jumped out of the water.

He found that he was in a safe passage, and the safety staircase leading to the water building in Lele Plaza was more than one meter above him.

"Is that so..." Qian Yu basically knew how he was brought here by the current.

Most of the cement piled behind the security door has been washed away.

Although the compressive strength of 525 cement is 52.5 MPa per square meter, it can theoretically withstand the pressure of 5,000 meters underwater. But that is the compressive strength. If the water flow hits the safety door and the cement behind it, the part where the cement is connected to the ground will be smashed.

If you open it, you don't need that much strength at all. That's why I was rushed from the kitchen to the safety stairs, and then rushed here...

Wait a minute, I wasn't the only one in the kitchen at that time...

Qian Yu quickly looked around for traces of Hui Yuan Ai. "Hui Yuan? Hui Yuan?"

No one responded to him.

Could it be that she has actually come ashore?

With this idea in mind, Qianyu swam to the stairs above the water and walked out from the exit. He saw the tram they came on was parked in front of him.

Haihara Ai is not here...

Qianyu's anxiety became even worse. He took out the traceless umbrella from the backpack he was carrying, smashed a vending machine next to it, and took out two bottles of drinks. After opening the bottles, he poured out the water and filled two bottles of air.

After that, he quickly returned to the safety stairs and observed the surrounding situation.

The water flow is now basically stable. If Huihara Ai still can't come up, there may be something wrong.

Qian Yu dived directly into the water with his eyes open, preparing to search for Hui Yuan Ai.

Since she could be washed up by the water, it meant that Haihara Ai could too. The only reason why she was not washed up was because she was blocked by something like a railing somewhere, so she couldn't get up.

Qianyu, who had just dived half a level, suddenly came back to the surface and began to breathe.

I was too anxious just now, and my heart rate was also very fast. In this case, my oxygen consumption would be very fast, and I would not be able to carry Haiyuan Ai up.

Qianyu began to use abdominal breathing, incorporating the air in the lower part of his lungs into his breathing exchange.

You cannot force yourself to inhale to the point where it becomes uncomfortable, otherwise your heart rate will increase. Maintaining an appropriate amount of air and keeping a calm mind is the way to maximize your diving time.

Calm down... It doesn't matter if Haihara Ai drowns for another minute or two, her brain can still hold on for a few more minutes.

A few seconds later, Qianyu, who had regained his composure, entered the water again.

Qianyu searched for traces of Haihara Ai with the help of the emergency lights on the safety stairs that could operate even under water.

After exploring down two floors, Qianyu discovered Haiyuan Ai who was holding on to the railing and slowly moving upstream.

Qian Yu immediately relaxed and approached Hui Yuan Ai, preparing to take her up.

However, just when Qianyu approached Haiyuan Ai, Hui Yuan Ai suddenly started twitching.

Qian Yu immediately realized that something was wrong and was about to stay away from Hui Yuan Ai, but Hui Yuan Ai grabbed her wrist. As a result, Qian Yu even let go of the air bottle he was holding and helped him up.

Not good... being so careless when facing a drowning person...

Because Haiyuan Ai was close to suffocation, she could no longer maintain her rationality. Now she seemed to have seen a life-saving straw, and she was holding on to a living person.

Qian Yu tried to break free, but Hui Yuan Ai pulled him directly to her side and hugged her tightly.

"!!!" Qianyu glanced at Haiyuan Ai who was clinging to him, and a trace of determination flashed in his eyes. Although it didn't feel bad to be clung to by a girl like this -

Hui Yuan Ai put her head on Qian Yu's neck and locked Qian Yu tightly with her limbs.

But if you continue like this, you will die!

Qian Yu also put down the water bottle in his other hand, and then used both hands to open Hai Yuan Ai's arms. Then, Qian Yu pinched Hai Yuan Ai's neck and wrapped his hands around Hai Yuan Ai's neck.

, the two thumbs were exactly at the arteriovenous plexus on the left side of Haihara Ai's neck. After pressing for a few seconds, Haihara Ai lost consciousness and his body became limp.

Qian Yu sighed in his heart, pulled Hui Yuan Ai and began to emerge urgently.

Hmm, I need to find a random bottle before that, otherwise I'm afraid there won't be enough oxygen.
Chapter completed!