Do I need to warm up the engine of a modern car?
With this article we want to answer, probably, one of the most frequently asked questions in the forums of motorists: "Do I need to warm up the engine?". Drivers on this issue are divided into three categories. The first category of drivers are those who are categorically against warming up the engine at any time of the year. The second category, those who perform this operation only when the thermometer falls below zero degrees. And the last category, motorists, those who constantly warm up the engine of their car, despite the winter cold or summer heat.
On the side of the drivers, who are ardent opponents of warming up the engine, are the car manufacturers themselves. In the books on the technical operation of cars, they often indicate that the engine does not need warming up. Automakers claim that warming up the engine is a waste of time and
fuel. In addition, in the countries of the European Union and some other countries, warming up the car is not only prohibited, but also fraught with the imposition of a substantial fine. So, the conclusion is obvious? Warming the car is not needed? But still it is not. Let's see why warm up the engine and what will happen if you do not.
Every driver knows that it is necessary to replace the engine oil in a timely manner. But not everyone knows and understands how the engine oil works.
combustion. During engine operation, the oil circulates through its internal channels and surfaces, like blood through human vessels. But when the engine is stopped, the oil from its surfaces flows into the pan, and a small oil film remains on its elements. And the longer the engine will not wind up, the thickness of this film will continue to decrease. Therefore, even in the warm season, after the engine plant, the oil should be given, albeit a short-term, but necessary time for it to fully circulate throughout the engine's “vascular system” at idle. OILConsulting from KSMLUBES does not recommend even in the summer after starting the engine in the first 45 seconds to set off. With a decrease in ambient temperature and the onset of winter, the situation only becomes more complicated. Due to the fact that at negative temperatures, the oil in the engine that is not running quickly cools down and becomes thicker, it takes more time to acquire characteristics that will effectively pass through the entire lubrication circle of the engine. Because of the drive on a car with a cold engine, not only does the wear of its elements increase, but the risk of damage to one of the components of the unit also increases. It is not strange, but the "warming up" of the oil also affects the operation of the oil filter. Oil passing through the filter element leaves it with all the waste products of the engine, these are particles of soot, sludge, shavings, sand, etc. When the oil cannot pass through the filter, the bypass valve opens and the oil directly enters the engine without filtration. And if this overflow valve just opens at the moment of driving a car, then all the dirt will get directly into the engine, and therefore the elements will be worn at the maximum.
When driving a car on a cold engine, there is a high risk of damage to the compression and oil rings of the piston. When the engine is running, the rings undergo high loads as they rub against the walls of the cylinders. Within a few seconds after the start of the engine, it runs at elevated speeds, which after a while descend. This is due precisely to the stroke of the engine pistons in the cylinders.
When warming up, the cylinders, like any metal, expand, due to which the rings are released from under compression and the engine elements begin to lubricate more efficiently. And if you do not warm up the engine before driving, there is a risk of damage not only to the rings, but also to the cylinders themselves. The adjustment of the valve mechanism of the engine of modern cars provide hydraulic lifters and hydraulic tensioners. To work correctly, oil must be pumped into their elements, which occurs after it is warmed up to operating temperature. If you start moving the car without warming up the oil, the gaps will be adjusted with low efficiency.
As can be seen from the fact that we have considered in this article, there are many arguments in favor of engine warming up both in the winter and in the summer. There is a high risk of damaging engine components if movement is not started. So why are automakers categorical in their statements about warming up? Car manufacturers
speaking out against the warming up of the power unit, they speak about the unjustifiably long warming up, because of which the fuel consumption increases and the environmental damage is caused to the environment.
For competent and most importantly safe and reliable operation, warming up the engine is necessary. Not only the ambient temperature regulates the warm-up time of the power unit, but also the choice of high-tech lubricant. The choice of modern oils of the TEMOL Luxe series allows for the effective protection of internal
engine surfaces and to minimize its warm-up time, after which you can safely start moving.
Recommendations of the speaker OILConsulting from KSMLUBES Roman Chebaev on the use of oils series TEMOL Luxe 5W-40 and Luxe 5W-30 in terms of the time period for the engine to warm up.
At ambient temperature:
- Below -30 ° C. It is necessary to warm up the engine from 10 to 15 minutes;
- From -10 ° C to -30 ° C. It is necessary to warm up the engine from 7 to 10 minutes;
- From + 10 ° C to -10 ° C. It is necessary to warm up the engine from 4 to 7 minutes;
- Above + 10 ° C. It requires warming up the engine no more than 1-3 minutes.