In addition, the lubricating fluid changed every 10-15 thousand kilometers, or also the risk of engine failure. Serviceable engine uses almost none of the oil - the replacement to the replacement of such engine level decreases literally 1-1.5 liters, for a total of 1 liter of 10-15 thousand kilometers!
Generally speaking, the maximum allowable flow rate is considered to be half a liter per 1000 miles, however, it is a fault in the engine.
The car, which has already served about 10 years or even more likely to spend more oil than the new one, but it does not mean it is damaged - just wear of rubbing parts in the engine increases, hence the increase in oil consumption.
However, if the lubricant consumption is too large, it is necessary to carry out engine diagnostics and repair. Because of that same can be overrun engine oil?
The first reason - it leaked. In the crankcase, there are many places that for long term use may lose their integrity and begin to leak oil. It also seals the camshaft and oil pressure sensor, and valve cover and so on.
Eliminated leak sealing problem areas using special materials, replacing some worn parts, for example, a pressure sensor or oil filter.
In addition, there are cases when in the crankcase cracks - they need to be treated with a special sealant.
The second reason for increased oil consumption - is it burning. Most likely occurs through the burning oil valve seals or through sagging ring pistons.
In the first case, to determine the burning of oil, you can - ramp the motor up to 4 thousand turns and look at the exhaust - it will be harder than usual, and with a sharp start from the exhaust pipe off a thick cloud of smoke.
Much worse when the oil burns through sagging ring pistons - it is possible to determine the thick smoke that appears when the load increases, for example, acceleration. Remedy such failure is much more difficult, but possible, and if in the burning goes through a crack cylinder - it's practically irremovable.
