How do cars reduce fuel consumption?

I don't know if your car is diesel or gasoline. Some auxiliary measures can be used to reduce fuel consumption. You can use some fuel additives, because fuel additives are available in gasoline and diesel versions. I've used a diesel version before, called Oil Le Jia. I drive Ou Man GTL, Fukang 430,20/KLOC-0,733,000 KM, and I drive Shijiazhuang, with a round trip of about 2000KM and a standard load of 40T.

Later, I drove a Mercedes-Benz E200, and the fuel consumption of gasoline additives in Le Jia dropped from 9 to 8. After that, the second additive was added, and two squares of oil were added to the fuel tank, and the same mileage was increased. Later, he used his diesel additive, 2000 kilometers, saving 200 yuan for the first time. The fuel saving rate is as high as 6%, which I feel is more cost-effective than similar products. I bought it in my flagship store in JD.COM, so I can try it.