Oil prices may rise seven times in a row-it costs 42 more to add a box. How much is 5 yuan (it costs 7.5 yuan more to add a box of oil)？

On the last day of 2020, a new round of price adjustment window for domestic refined oil products will be opened again. According to the agency's forecast, the oil price will rise four times in a row. Based on the average private car's 50-liter fuel tank, it will cost about four yuan to fill a tank of oil.
In terms of retail, at present, the prices of No.92 and No.95 gasoline at Sinopec gas station in Shandong Province are 5.86 and 6.28 yuan/liter respectively, and the current round of retail price increase is about 0.07 yuan/liter. Private car owners can fill up their fuel tanks before this Friday.
According to statistics, if the current oil price is adjusted according to the above, in 2020, the domestic refined oil price will go through 25 rounds of adjustment, including 12 runs aground, 5 downward adjustments and 8 upward adjustments, with the cumulative downward adjustment of gasoline price by 1,285 yuan per ton and diesel price by 1,235 yuan per ton.
Looking forward to the market outlook, Li Yan said that the next round of price adjustment window will open at 24: 00 on January 15, 2021. Recently, the international crude oil market is still plagued by overseas epidemics, and it is expected that the next round of price adjustment for domestic refined oil products is more likely.