I've only seen it at 2* once and its less than 1* only on long hard runs closing in on 100 mph so for daily driving its not a concern at all I guess. I'm new to this stuff so I'm just being cautious. I'm going to reprogram the lights to only come on over 1* on one gauge and over 2* on the second gauge. If I see more than 2* I will take it seriously. Like gtpsleeper said I'm thinking it the .02 amount of KR may be false knock.