Why is the exhaust pipe black?
Why is the exhaust pipe black?
This is due to the incomplete combustion of combustible mixture in the cylinder. Almost all cars' exhaust pipes will turn black after a long time. We can't judge the combustion of automobile engine according to whether the exhaust pipe is black or not.
The working principle of an automobile engine is very simple. The fuel of an automobile engine is a mixture of air and gasoline. The mixture of gasoline and air can't burn completely in the engine. After a long time, the exhaust pipe will turn black and carbon will be produced in the cylinder.
If riders want to avoid carbon deposition in cylinders, they can use some fuel additives to remove carbon deposition.
Don't be greedy when refueling, go to some small gas stations with poor oil products. It is suggested that riders go to a big gas station with good oil products to refuel, which can also reduce carbon deposition in cylinders.
If there is a lot of carbon deposit in the cylinder, it is recommended that riders go to some professional institutions to clean up the carbon deposit. The more effective method to clean up carbon deposit is walnut sand cleaning method.
Many auto repair shops will remove carbon deposits by hanging bottles. The effect of this method is not very good, so riders are advised not to use this method to remove carbon deposits.
The parts prone to carbon deposition are combustion chamber, valve, throttle and air inlet. When removing carbon deposits, we can focus on these parts.
Removing carbon deposits requires going to some professional institutions.
Why is Passat r36 so expensive?
Because r36 is an imported Volkswagen model and a station wagon, it looks particularly handsome in appearance. And r36 uses a 3.2 naturally aspirated six-cylinder engine, which is very aggressive in power and deeply loved by performance car enthusiasts, so r36 is very expensive to sell.
About r36:
R36 is a medium-sized car produced by Volkswagen and belongs to an imported station wagon. The previous generation r36 was a 2007 model, and the price of the new car was 429,800-439,800 yuan. As of August 2065438+2009, r36 has completely stopped production, and the current market price is about 200,000 yuan.
In terms of fuselage size, the length, width and height of r36 are 4765* 1820* 1472mm respectively.
In terms of power, r36 adopts a 3.2-liter naturally aspirated six-cylinder engine with a maximum horsepower of 250 horsepower, maximum power 184kw, maximum torque of 330n·m, maximum speed of 246km/h and acceleration time of 6.9 seconds per 100 km.
For gearbox, r36 adopts 6-speed dual-clutch gearbox.
In terms of suspension, r36' s front suspension is McPherson independent suspension, and its rear suspension is four-bar independent suspension.
In terms of driving, r36 is a full-time four-wheel drive.
In terms of tire size, the front and rear wheels of r36 are 235/45 R 17.
Why is the exhaust pipe black @20 19?