Naturally casein-free foods are of vegetable origin. Fruits and vegetables are casein-free foods, and nuts can also be considered in the diet if there are no restrictions. However, some processed foods containing fruits, vegetables, or nuts may not be casein-free foods. Casein is an excellent binding agent and may be used in spreads, dressings, and other processed products.
Engine misfire occurs when the engine do not fire at the right time or do not fire at all. This is one of the signs that your automotive have troubles. The spark plug is set electrically to fire at right time ensuring that the engine has enough amount of power present.
So, now you've diagnosed a misfire and have isolated it to one cylinder. Many times, the cause will be obvious when you remove the spark plug. If the plug's insulator is cracked or broken, you've found the problem. If the plug appears to be OK but is wet, inspect the plug wire and boots for damage.