Edema has many possible causes: 1  Prolonged standing or sitting, especially in hot weather, can cause excess fluid to accumulate in the feet, ankles and lower legs. 2  Tiny valves inside the veins of the legs can become weakened, causing a common problem called venous insufficiency.
Cars with nitrous-equipped engines can be identified by the purge of the delivery system that most drivers perform prior to reaching the starting line. A separate electrically operated valve is used to release air and gaseous nitrous oxide trapped in the delivery system.
for liquid nitrous. That is why your cylinder has a siphon tube that runs to the bottom of the tank to pick up and deliver liquid nitrous to your system. MYTH: The Nitrous Used in Drag Racing is the Same as Dentists Use When administered for pain relief, nitrous oxide is mixed with oxygen to prevent brain damage and unconsciousness. The nitrous oxide used by your dentist is the purest form available, however, and if it was available to the general public you could use it in your engine.