Why must air tanks be drained?
Answer: The air tanks can have water and compressor oil in it that will freeze when in cold weather and cause brake failure.
Answer: The air tanks can have water and compressor oil in it that will freeze when in cold weather and cause brake failure.
If the answers is incorrect or not given, you can answer the above question in the comment box. If the answers is incorrect or not given, you can answer the above question in the comment box.