You should not count on the veracity of the speedometer indicators, which constantly “lie”. Let’s say more: the faster you move, the more the speedometer “fools”. For example, when driving below 100 km / h, the speedometer overestimates the parameters by about 5%, and at speeds above 130 km / h – by 7-8%.
The fact remains: the measurement error of the device is too high. Of course, it shows data without focusing on tire size, road conditions, wind and other external factors that affect a car’s speed. That’s why discrepancies in data often turn into infamous “letters of happiness” for drivers.
The famous Start-Stop system is also not without sin. Not only does it annoy the nervous work cycle and sometimes not allow you to take off abruptly, it also does not save fuel. But automakers “rub” us that the smart feature is designed to reduce “fuel” consumption. In fact, it is only possible to really save hard-earned pennies with a regularly serviced interval after stopping the engine for at least 10 seconds. And in the same traffic jams, the system turns on and off almost every second, proving its uselessness.
In addition: “Start-Stop” harms the health of the driver and passengers! When the engine is running, there are certain risks of getting carbon monoxide poisoning, which saturates the exhaust gases. Not for nothing, some time ago the world’s car giants got hats en masse after numerous consumer lawsuits.