- Oil loss is often confused with consumption. Therefore, before criticizing oil consumption, all illegal sources of oil loss must first be eliminated.
- Anyone who pours oil much higher than the upper mark on the dipstick automatically has an increased oil consumption, because. excess oil is blown out of the crankcase
- Fluid oil burns faster than thick oil. If the seasonal oil is very hot, then it flows, «like water». On the contrary, all-weather remains viscous and can reduce consumption when traveling, especially over long distances.
- Engine oil (First of all, all-weather), that remains in the engine for too long has a slightly higher need for topping up.
- Harsh driving style increases not only fuel consumption. In our experience, oil consumption also depends on the driver's preference for driving at high speeds.
- Break-in process not yet completed (at least 5000 km)
- Defect in the engine; for example, defective valve stem gaskets, too much clearance between the valve guide and the valve stem, incorrectly installed or damaged piston rings, cylinder wall damaged by scoring on the piston.
Does the engine consume oil?
In winter, when driving short distances, it happens that the oil level rises instead of dropping slightly as usual. This does not mean that you have discovered a new source of oil, but that the contents of the crankcase are diluted with fuel condensate, which - due to the re-enrichment of the fuel-air mixture - is forced past the piston rings. In this case, you can smell gasoline in the oil even with the dipstick removed.
The graph shows the applicability of engine oils of different viscosities depending on the outside temperature:
«A» - seasonal oils;
«IN» - all-weather oils;
«WITH» - high-performance and easy-flowing oils.
Due to this, the lubricating properties of the oil are significantly reduced. Additional oil change between set intervals (often already after 3000 km of run) is not a luxury, because this can save you severe engine damage. Of course, there is no need to change the oil filter.
If the oil is slightly diluted, a long trip can restore the oil level and its lubricating properties. An oil temperature above 100°C evaporates the condensate particles after about half an hour. It is important to immediately measure the oil level! Due to evaporation, its level can drop significantly.
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