Mall-displacement, high-power turbo engine delivers plenty of power while controlling exhaust emissions well. The turbocharger is utilized without changing the exhaust volume to increase the engine intake and boost engine power. A 1.6T engine has a higher power output than a 2.0 naturally aspirated engine while consuming less fuel. But in addition to these advantages of sufficient power environmental protection and energy saving, the shortcomings are also undeniable, many turbo car owners reflect the serious phenomenon of oil burning. In contrast, naturally aspirated engines seldom appear in this situation. Why is this?
Engine piston and cylinder clearance is an extremely important technical parameter. Different models of engines, especially the modern reinforced engine, due to their respective structures, materials, and other technical parameters are different, the piston and cylinder clearance is not the same. When the engine starts, in the case of water temperature and engine temperature are still relatively low, there will be a small part of the oil through these gaps into the combustion chamber, which also causes the situation of oil burning.
A turbocharger consists mainly of a pump wheel a turbine, and of course some other control components. The pump wheel and the turbine are connected by a shaft, also known as the rotor, and the exhaust gas from the engine drives the pump wheel, which rotates the turbine, which then pressurizes the air intake system. The rotor works at a very high speed, up to more than 100,000 revolutions per minute, such a high speed makes the common mechanical needle or ball bearings can not work, so the turbocharger is commonly used in full-floating bearings, lubricated and cooled by the oil.
To reduce friction to ensure high-speed operation of the turbo, this part of the lubrication of the oil seal can not be too tight, so there will be a small amount of oil through the oil seal into the two ends of the turbo, and then into the intake pipe and the exhaust pipe, which is a turbocharged car open the intake pipe found in the oil. Different cars have different oil seals on the turbocharger, and the amount of oil leakage varies, resulting in different amounts of oil burning.
How to avoid and mitigate oil burning?
Choosing High-Quality Lubricants
Typically the turbocharger kicks in at engine speeds up to 3,500 rpm and ramps up quickly until 6,000 rpm. The higher the engine speed, the higher the shear resistance of the oil is required. Only in this way can the lubricating ability of the oil not be reduced at high speeds. Therefore, when choosing engine oil, you should choose high-quality engine oil, such as high-grade fully synthetic engine oil.
Change your oil regularly Maintain it on time
A large part of the turbo car oil burning situation is because the owner did not change the oil on time, or used poor-quality oil, resulting in a floating turbo main rotating shaft that can not be normally lubrication and heat dissipation, turbocharger and intake pipe between the seal is damaged, resulting in oil leakage. So during maintenance, be sure to check the turbocharger. Including turbocharger sealing ring sealing, lubricant pipe and joints whether oil seepage, turbocharger whether there is a strange sound and abnormal vibration.
Save for a rainy day and check the dipstick often
If you suspect that your car’s oil consumption is abnormal, then you should check the dipstick frequently. Check the car first parked, tighten the handbrake, and start the engine, when the car engine reaches the normal operating temperature, turn off the engine and then wait a few minutes, so that the oil can flow back to the oil pan. Wait until the oil stays back and then take out the dipstick, wipe it clean and then put it in, and then take it out again to check the oil level, if it is between the marks at the bottom of the dipstick, it means that the oil level is normal. If it is below the mark, it means the oil level is too low, and if there is too much oil, the oil level is now above the mark.
Keeping the turbocharger clean
The turbine is designed and built with precision and works in a harsh environment. Therefore, it requires very high cleanliness and protection of the lubricant, and any impurities are very damaging to the friction of the components. The turbocharger’s rotor shaft and the bushing with a small clearance, if the lubricant lubrication ability is reduced, it will cause premature turbocharger scrap. Secondly, the air filter needs to be cleaned or replaced on time to prevent dust and other impurities from entering the high-speed rotating supercharger impeller.
Slow start, slow acceleration
During a cool start, various parts are not adequately lubricated. This is when the turbocharger if started, increases the chance of wear and tear. Therefore, the turbo car should not press the accelerator pedal sharply after starting the vehicle. It should be idled for 3 to 5 minutes, so that the oil pump has enough time to deliver the oil to the various parts of the turbocharger, while the oil temperature slowly rises, after better fluidity, so that the turbocharger can be fully lubricated.
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