What is dangerous underfilling and overfilling of oil in the engine

What is dangerous underfilling and overfilling of oil in the engine

Read the readings of the probe to properly.

Besides, how much oil should be in the engine – need to know definitely. In modern cars the dipstick indicating the oil level is easily accessible, although it may be very long. Its handle is most often painted in a bright contrasting color (yellow, red). If you are not able to locate him, to narrow the place of the search will help the user manual. Classic dipstick is at the minimum (min) and maximum (max), within which should be the meniscus of the oil level.

Experienced mechanics and drivers with experience say that the best option is when the column of oil is placed exactly in the middle between these values. Experts advise to check the oil level cold the engine off. When the motor is not opened, all the oil is in the pan, where the measuring probe. If the engine is running, almost all the oil spreads on the details, performing their direct function, so that the results of the measurements will be strongly underestimated. If you just turned the engine off and check the oil level, the indicators will also be wrong, because the oil has not had time to drain from the parts in the crankcase, and the results will also be false.

Also to avoid confusion, measure the oil level you need at a time when the machine is on a level surface and not tilted to any of the parties. First time pulling the dipstick from your regular places, you can see that he is covered in oil. Nothing to worry about. For accuracy of measurement wipe with a clean rag or shop towel from the oil dipstick, reinsert it into the hole until the end, and then pull out. The second measurement will be the most informative and accurate.

What are the consequences of overfilling?

Pour the oil into the motor and adjust its level to the maximum mark is not necessary. First, it is fraught with its geranium and a waste of money. Secondly, from excessive amounts of engine oil can start to deteriorate the rubber seals, seals that are not designed for this amount of viscous fluid. Slack can also give strip, the joints of oil hose leaks often appear: the extra has to go somewhere. In the best case, the excess will just burn out and the oil level is stabiliziruemost, and in the worst oil “trample” through the joints of the engine parts, destroying in its path the rubber parts, made of nematostella material.

What is the danger of lack of oil?

An even more dangerous situation for the engine is the position of the oil level is at the minimum. Deficiency of lubrication can cause oil starvation to the power unit. Exploiting some time the car with a minimal amount of oil, you run the risk of getting jammed pistons, crank bearings and other troubles, which can cause lack of lubricating fluid. Many modern cars with a low oil level can illuminate red oil can on the dashboard, but it happens that this is a signal of failure. So if when checking the level, you noticed the lack of oil, not too lazy to buy a “larusso” the same viscosity and the same brand in order to replenish the loss.


50-60 years ago, the manual advised me to check the oil level daily, later, this interval has increased to weeks. Today, many motorists and does between do not look under the hood. We still suggest that you at least once in 2-3 weeks (and before a long journey) to check the oil level and visually inspect the tanks with other fluids to determine their availability to deprive yourself of the unpleasant situations on the road. Vigilance is never superfluous, according to the portal avto-master.