Originally, according to the plan, after Yan Liqiang inspected the border set in the morning, he would leave for Baishiguan to inspect in the afternoon, but because of the fire oil that Yan Liqiang found in the side set, he temporarily adjusted the plan and stayed in Yingwei County for another day.

In addition to Yan Liqiang, other people, including Qian Su, Lu Wenbin, Fu Changde and others, didn't know why Yan Liqiang attached so much importance to a little fire oil brought by a mountain man, and actually temporarily changed his itinerary for such a little thing.

......

"That mountain man named Lu Dahai may not be telling the truth, I have never heard of this fire oil before!" In the courtyard behind the Yingwei County Office, Fu Changde looked at Yan Liqiang with great interest and asked people to bring braziers, sand, fire folds and other things, wanting to try the effect of this fire oil, and couldn't help but shake his head next to him, " I know that there is a kind of tree called Red Leaf Oil Nan in this Jade Dragon Mountain, as long as the bark is separated, there will be something like oil in the book, and the oil flowing out of Red Leaf Oil Nan can be used to light the lamp, the color of this fire oil is a bit similar to Red Leaf Oil Nan, but the taste is not quite right, it may have added something......

"Haven't you heard of the fire oil coming out of the ground in Jade Dragon Mountain before?" Yan Liqiang asked him.

"No, never!" Fu Changde shook his head, as the old department of the former Qiyun Governor's Mansion, Fu Changde was very familiar with the situation in the Gulang Grassland and Yulong Mountain, he said that he had not heard of it, so he said that no one had really found it before, or it had been discovered but ordinary people did not know about it, and it did not spread.

"What about you?" Yan Liqiang looked at Qian Su and Lu Wenbin.

Lu Wenbin shook his head, but Qian Su frowned and thought about it, "I remember that many years ago, I met an old craftsman who was sent to the Ganzhou Craftsman Battalion, and the old craftsman went to sea when he was young, and he said that he had seen something similar to coming out of the ground overseas, a bit like kerosene, and it was also a little ......."

"Oh, what did the old craftsman say?"

Qian Su's face showed a look of reminiscence, and he was trying to recall, " At that time, he also said it after drinking, drunk, and said a little vaguely, I remember that he seemed to say that the kind of thing he saw overseas that came out of the ground was on an island, and a large lake flowed out, and then that large lake was still on fire, and the fire was soaring, and it could be seen hundreds of miles away, and it didn't know that it had been burning for hundreds of years, and it was burning every day, and the local people were afraid, saying that at that time, the hellfire did not dare to approach, I heard it back then, and I only thought it was an overseas strange talk, and I didn't take it to heart, and I laughed it when I heard it......”

"Haha, no matter what, let's just try!" Yan Liqiang smiled, he understood Fu Changde's words, but what Fu Changde didn't know was that when talking to the mountain man named Lu Dahai, the snake in Yan Liqiang's head was moving, so every word of Lu Dahai was true or false, and even every thought in his head, Yan Liqiang was clear, Lu Dahai was telling the truth, this fire oil was really he got from Yulong Mountain, and Yan Liqiang already knew where Lu Dahai got this thing from Yulong Mountain.

As he spoke, Yan Liqiang had already picked up a wooden can, poured a small half jar of fire oil into the brazier, and then folded a tampon with the fire and threw it into the brazier.

"......Boom", the burning tampons fell into the brazier, and the flames in the brazier suddenly jumped up more than four feet high, startling Qian Su and Lu Wenbin, who were standing next to them watching the excitement, and hurriedly took two steps back in the rising flames.

"It's such a high fire, this fire oil is just a little bit, and it is easier to ......catch fire than pine oil and vegetable oil," Lu Wenbin sighed.

"This black smoke is also a little bigger, bigger than the smoke of pine oil and tung oil...... Qian Su also stared at the black smoke coming out of the brazier and said, "The smell of this burning is also a little pungent!"

The blazing firelight illuminated Yan Liqiang's face red, Yan Liqiang squinted his eyes for a while, then turned his head and asked Fu Changde, "Is the fat of the red leaf oil Nan so big when it burns?"

Fu Changde shook his head, "Can't!"

Yan Liqiang was intently looking at the fire burning in the brazier, and after seven or eight minutes, the fire in the brazier was finally extinguished, and in just such a while, the edge of the brazier had been burned a little red, and in the end, there were only some black ashes left in the brazier.

But Yan Liqiang was not enough, and then he poured out all the remaining jars of fire oil, and poured them on the ground of the bluestone slabs in the garden, sprinkled a piece, and then he threw the lit cotton strips on the ground again, and the fire oil on the ground also burned.

The third time, Yan Liqiang directly poured some fire oil into a large water tank, and the oil floated on the surface of the water, and then was ignited again......

After trying it a few times, the beautiful bluestone slab floor in the garden was burned black, the flowers and plants near the fire source were scorched a lot, the big water tank was also blackened, and a strange smell of burning wafted in the garden, and the originally exquisite back garden of the government office suddenly became a mess, but the smile on Yan Liqiang's face became stronger and stronger, by this time, Yan Liqiang was completely sure that this oil was something he officially needed, although I don't know why this thing that came out of the ground in this world is different from the oil and crude oil I saw in my previous life, but it doesn't matter, the important thing is that this thing is available！

And it seems to be quite a lot!

Looking at Yan Liqiang's tireless experiments again and again and the happy smile on his face afterwards, Qian Su, Lu Wenbin and Fu Changde also slowly figured out something.

"My lord, this thing is very useful in the army......" Fu Chang Demo rubbed his chin, and his face showed the same cunning and greasy smile as an old fox.

"Well, this matter will be left to you, Lu Dahai will come to you!" Yan Liqiang pondered for a moment, "Lu Dahai can take this thing out of the mountain with a basket on his back, which means that even if the place where this fire oil is located is in the Jade Dragon Mountain, it will not be too far away from Yingwei County, and when Na Lu Dahai comes again, you can find out our identity to him, and then promise them some benefits, take them for their own use, and transport this fire oil out of the mountain together, don't make a noise about this matter for the time being, the fewer people who know, the better!"

"Don't worry, my lord, I know how to do it!" Fu Changde nodded and said.

"Also, this thing has been collected a lot, you must pay attention to it when storing it, otherwise it will cause a big accident, I will ask the Manufacturing Bureau to send a team of craftsmen to Yingwei County to assist you in doing this well!"

After a day's delay in Yingwei County and discussing with Fu Changde to arrange all kinds of fire oil, early the next morning, Yan Liqiang took people and no longer took a carriage, but rode a rhinosaurus horse and went straight to Baishiguan......