Can cars use fuel to reduce carbon deposition?

It has a certain effect, but it is not "good engine oil" that can be applied to all engines or achieve a certain effect on all shippers! In order to achieve a good effect of removing (or reducing carbon deposition), there are several important aspects worthy of attention:

According to the instructions in the on-board user's manual, the engine oil suitable for vehicles should be used correctly (there are relevant standards for viscosity grades, etc.), and the higher the non-grade (good engine oil), the more suitable it is for your own vehicle or the carbon deposition can be reduced effectively, on the contrary. Improper use of "good" engine oil may aggravate the generation of carbon deposit, engine wear or cause other defects.

correctly maintain the vehicle according to the user's manual. Some abnormal maintenance phenomena, such as delaying or not maintaining the engine for a long time, not maintaining the car for a long time or parking, etc. Maintenance principle: according to the requirements of the user manual, the first arrival of time is subject to time, and the first arrival of mileage is subject to mileage. It is better that the parameter standards of both (time and mileage) can be advanced appropriately.

use good quality fuel. The higher the non-label number, the more suitable it is for your own vehicle, which is very important.

do not use inferior or counterfeit product oil.

obey the rules and discipline and develop good driving habits.

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oil cleaning

oil functions: cleaning, sealing and leakage prevention, lubrication and wear reduction, buffering and damping, cooling and so on.

cleaning principle: the engine oil circulates and filters the carbides, sludge and worn metal particles on the internal parts of the engine through the flow, so as to achieve a certain cleaning effect.

The higher the p>SAE grade (good engine oil), such as some semi-synthetic and fully synthetic engine oils, it has excellent low-temperature fluidity and high-temperature viscosity protection performance in winter and summer, which can protect the engine to the greatest extent. However, this kind of engine oil (good engine oil) is not necessarily suitable for engines with poor sealing performance, relatively low machining accuracy or slightly rough material processing. This type of engine often appears on low-cost vehicles, and needs viscous engine oil to seal the cylinder and piston ring. If a thinner engine such as synthetic engine oil is used, it may cause problems in sealing performance, and the lubrication and sealing of the engine will be affected. For example, when the cold car starts, the engine will be damaged by great wear, and if it is relatively viscous medium-grade engine oil, the wear caused in this engine will be much smaller.

Therefore, the questioner's question about "good engine oil ... cleaning effect ..." may not be suitable for all models of engines. Only "suitable or correct" viscosity grade engine oil suitable for normal operation of vehicle engines can achieve ideal internal cleaning effect.

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knowledge about carbon deposition

The fuel that is not completely burned (even if it is completely burned, it will produce some HC-like carbonized substances) leaves some incombustible rubber substances (such as petroleum hydrocarbons, paraffin wax, etc.) after volatilization, reburning and oxidation, and carbon deposition is formed over time.

under special conditions such as high temperature, high pressure, and participation in combustion, some engine oil in series forms some "flail" (C carbide) or "sludge", etc. Some engine oil vapor and incompletely burned gasoline volatilize, participate in recirculation and adhere to the throttle body for a long time to form carbon deposit. Some unburned fuel mixed with engine oil in the crankcase will also accelerate the chemical fission of engine oil.

The air filter element (quality or maintenance cycle) and valve timing affect the intake air (mixed gas), which accelerates the adhesion of exhaust gas mixed particles (throttle body) and the abnormal negative pressure value in the crankcase, and accelerates the formation of carbon deposits. In addition, the ignition components (such as spark plug model and maintenance cycle) also affect the formation of carbon deposits.

If the volatilization value of engine oil is too high, it will accelerate its oxidation and viscosity increase, and the mixture formed by high-temperature evaporation of engine oil and fuel will also increase the carbon deposition in the intake system after recirculation (the lower the Nock volatilization value, the less carbon deposition in the throttle valve will be produced by engine oil).

Frequent (or long-term) traffic jams or low-speed driving, and improper manipulation of driving habits by individuals are also an aspect that affects the formation of carbon deposits.