This may be a stupid question, but I'm amsoil ignorant. My Summit used nothing but Amsoil by the previous owner. The tank is about 1/2 full now, and I was thinking of sticking with Amsoil. (here's the stupid part) The Amsoil is blue in color in the tank. I didn't know there was different types of snowmobile oil from Amsoil. I know the injector is blue because it comes in clear jugs. Is the interceptor blue also? Since the previous owner is no longer available to ask I would like to continue using the same type. Which type (if both are blue colored) should I be using & is it ok to mix both types of Amsoil?