WD-40 is safe. I've been using it for years but I usuallyt put some ATF oil in the engine afterwards. I mainly use WD-40 when I take the engine apart and clean or mod it.D 40 (Water Displacement 40th try) removes the water to aid in rust prevention, (rust is also a horrible lubricant) then lube stuff.
Tweet. The color of sputum or phlegm, which is the mucus and sometimes pus discharge expectorated from the respiratory tract, is often an indication of the type of respiratory disease that gives rise to sputum production.ith infections, the green sputum will be more purulent (large amounts of pus) while in non-infectious inflammatory conditions, the green sputum will be more mucoid (large amounts of mucus). 1  Pneumonia â white, yellow or green. 2  Lung abscess â green, sudden accumulation of large amount of sputum if the abscess ruptures.
Mucoid, mucopurulent or purulent sputum is thicker and often more sticky than normal sputum. This is partly due to the greater mucus production coupled with pus in the purulent types. Apart from the consistency, the color of purulent sputum may vary from white or gray to yellow, green, rust-colored or brown. It may also have a pink tinge (blood streaked) which may be due to a small quantity of blood.