T9 is really a lubricant, not a cleaner. I'm sure it will dissolve some grease but White Lightening is certainly going to clean more effectively.
My experience is that T9 is a very poor chain lubricant. It lasted about 80 miles in good weather and had to be reapplied. Just about any chain lube will do better than T9.
-Tim-
Last edited by TimothyH; 01-15-19 at 08:07 AM.