605 is stock, 104 is one step colder and 103 is 2 steps colder than stock.
Actually, I believe AL 606's are equivalent to the stock heat range. But 605's are recommended because it can help reduce the factory GTP KR since they are one step colder. So 104's are two steps, 103's three steps, etc.
Actually, I believe AL 606's are equivalent to the stock heat range. But 605's are recommended because it can help reduce the factory GTP KR since they are one step colder. So 104's are two steps, 103's three steps, etc.