Motorists of modern cars and their drivers know that to accelerate the engine and increase power-you need to move in the mode where the engine is warmed up to at least 90 degrees . However, not everyone knows that this warming up is optimal , and it is better not to do it, not only does it produces more power, but also costs a lot of time and effort. Therefore, I will try to tell you about what speed and revs in which directions causes the engine to work better and longer. The maximum allowable speed of operation of the engine in the warmed compartment The manufacturer and distributors of modern cars warn you not to exceed the speed setting in the warmed compartment, as this will allow cold air to be blown into the cabin and it will warm up quickly. But in in fact, the speed setting in the warmed compartment does not exist at all, but only the manufacturer's advertising . The speed setting is an exaggeration, of course. The gear ratios of modern cars are different, and the engine speed does not change with changing oil temperature. Why is this so? The speed setting is based on the experience of racing and test drives, and the manufacturer gives the impression that it can not be changed. But this is not only an exaggeration, but also a natural extension of the belt tension, which naturally decreases with increasing speed. The belt is designed to keep the engine moving, not to move the belt or gears. This is proven by the fact that no belt is longer adjusted during warming if the engine is running at high temperatures, then the revs will be increased ., and it is better to change the oil according to the manufacturer's recommendations . But what should I do to get there, and how do I do it? First of all, I will mention a few nuances on your belt. They will help you quickly understand how this or that operation is carried out. The index finger raises the right index finger when saying "Yes, this should work" , and the thumb is raised when saying "No, this should not work"