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• 321.

  What is the use of oil drain tank?

  An oil drain tank, also called a drain pan or oil sump, is a container specifically designed to drain and collect oil from a car's engine, transmission, or other machinery during maintenance or repairs.
  Here are some of its main uses:
  ① Oil change: One of the main uses of the oil drain tank is during oil changes. When an oil change is performed on a vehicle or machinery, the old oil is drained from the engine or transmission into the drain tank for proper disposal or recycling.
  ② Fluid drain: In addition to engine oil, the oil drain tank can also be used to drain other fluids, such as transmission oil, coolant, hydraulic oil and differential oil. This helps maintain and repair various automotive systems.
  ③ Convenient disposal: The bottom of the oil drain tank is equipped with a spout or drain valve, which allows easy and controlled disposal of collected oil or liquid. This helps prevent spills and ensures proper disposal of used liquids, which is vital for environmental protection.
  ④ Clean and safe working environment: Using an oil drain tank to contain oil and liquids during the draining process helps keep the work area clean and tidy. This reduces the risk of spills, stains and environmental contamination, making the work of mechanics and technicians safer.
  ⑤ Recycling and Environmental Compliance: Proper disposal of used oils and fluids is critical to environmental compliance. Drain tanks facilitate the collection and recycling of waste oil, helping to minimize environmental impact and comply with regulations.
  
  Overall, oil drain tanks are a practical and essential tool for car care and maintenance, providing a convenient and effective solution for draining and collecting waste oil and fluids.
  

  
  
• 322.

  Is it good to put ATF in diesel fuel?

  No, it is not recommended to add automatic transmission fluid (ATF) to diesel fuel. Mixing ATF with diesel fuel can adversely affect engine and fuel system components. Here are a few reasons why adding ATF to diesel fuel should be avoided:
  ① Potential damage to fuel system components: The formula of ATF is not suitable for combustion in diesel engines. Because ATF has a different chemical composition and properties than diesel, adding ATF to diesel may damage fuel system components such as injectors, fuel pumps, and seals.
  ② Poor combustion: ATF does not have the same combustion characteristics as diesel. Mixing ATF with diesel fuel can result in incomplete combustion, reduced engine performance, increased exhaust emissions and potential damage to engine components.
  ③ Clogging of fuel filters and injectors: ATF contains additives and detergents that are not suitable for use in diesel fuel systems. These additives can clog fuel filters and injectors, causing poor fuel flow, engine lag, misfiring, and potentially expensive repairs.
  ④ Safety issues: Mixing ATF with diesel fuel may create safety hazards, including increasing the risk of engine fire or damage due to improper combustion and potential leaks or spills.
  
• 323.

  Does transmission oil clean injectors?

  Transmission fluid, also known as automatic transmission fluid (ATF), is specifically designed for use in transmissions to lubricate moving parts, cool components and promote smooth shifting. While ATF does contain detergents and additives that help clean and protect transmission components, it is not intended to be used as a fuel injector cleaner.
   Injector cleaner is designed to clean injectors and other parts of the fuel system, such as intake valves and combustion chambers. These cleaners often contain different chemicals and additives designed to remove carbon deposits, varnish, and other contaminants that can build up in the fuel system over time.
  
• 324.

  How do you clean oil sludge off an engine?

  Removing sludge from your engine requires thoroughness and care to ensure that engine components are not damaged in the process. Here is a step-by-step guide to cleaning engine sludge:
  ① Prepare the engine: Allow the engine to cool completely before starting the cleaning process. Cover sensitive parts such as the alternator, electrical connections, air intakes, and any exposed filters with plastic bags or aluminum foil to prevent water or cleaning solutions from entering.
  ② Degreaser application: Apply a high-quality engine degreaser or cleaner directly to the area affected by sludge. Use a stiff-bristled brush or nozzle to ensure thorough coverage. Allow the degreaser to penetrate and loosen the sludge for the recommended time, according to the product instructions.
  ③ Stirring: After the degreaser has acted for some time, use a brush or scrubbing pad to stir the sludge. Focus on areas with heavy buildup, such as the valve covers, engine block, and oil pan. Be gentle with your movements to avoid damaging delicate engine parts.
  ④ Flush: Once the sludge is loose, flush the engine thoroughly with water. Use a hose with a nozzle attachment or a pressure washer set to low pressure to remove degreaser and sludge residue. Be careful not to spray directly onto electrical components or sensitive areas.
  ⑤ Repeat if necessary: For stubborn sludge buildup, you may need to repeat the degreasing and flushing process several times until the engine surface is clean. Be patient and thorough to ensure all traces of sludge are removed.
  ⑥ Inspection and drying: After cleaning, carefully inspect the engine to ensure that all sludge has been removed. Use a clean, dry cloth or compressed air to wipe away any remaining moisture on the engine surface.
  ⑦ Replace the filter and oil: If sludge contaminates the engine oil or filter, clean it and replace it with a new one. Check other fluids such as coolant and brake fluid for contamination and replace if necessary.
  ⑧ Test run: Start the engine and let it run for a few minutes to ensure normal operation. Check for leaks or abnormalities that may indicate residual sludge or damage.
  
• 325.

  How do you get transmission fluid to circulate?

  Transmission oil typically circulates through the transmission system through a combination of natural flow created by the transmission pump and the rotating gears and components within the transmission itself.
  Its general working principle is as follows:
  ① Transmission pump: Most automatic transmissions have a pump inside the transmission housing. The pump is usually driven by the engine through a torque converter or a dedicated driveshaft. When the engine is running, the pump pressurizes the transmission fluid, forcing it to circulate through the transmission system.
  ② Fluid passage: The transmission oil flows through various channels and passages in the transmission housing. These passages direct the fluid where it's needed, such as the torque converter, clutch assembly, valve body, and cooler lines.
  ③ Cooling system: Many vehicles are also equipped with a transmission cooler, which is usually integrated into the vehicle's radiator. Transmission oil flows through this cooler to dissipate the heat generated during operation.
  ④ Gears and components: When the transmission is running, gears, clutches, and other components rotate and engage/disengage. This movement helps create a natural flow of fluid in the system.
  ⑤ Valve body: The valve body is essentially the brains of the automatic transmission, directing fluid to different components based on vehicle speed, throttle position, and other factors. This ensures that the right amount of liquid is delivered to the right place at the right time.
  Overall, the combination of transmission pumps, fluid passages, rotating parts, and valve bodies work together to ensure that transmission oil circulates effectively throughout the transmission system, lubricating and cooling vital components and promoting smooth shifts.