The guys at Jiffy Lube left grease on my carpet (next time I'll put in the all weather matts). I tried 303 fabric cleaner and the worst of the grease came out, but the area where I applied it is slightly darker - maybe it just moved the grease around or maybe I didn't rinse it well enough. I guess I can try it again, but don't want to make things worse. Anyone ever use household carpet cleaners like resolve? The carpet has 303 protectant on it - once I get it clean, will I need to reapply?