gmark - 7/9/2017 06:48

They put in a restriction indicator for a reason. On my combines, I just observe where the indicator is at every time I fuel up, and once it gets up close to the red, I clean it, which many times is a week or two. Its silly, and potentially harmful to clean them more often than needed. On my tractors, we are generally not in dusty conditions, and can go many years without touching the filters. Only put 50 to 75 hours per year on some of my old tractors, and some I went 10 years without cleaning. Just tossed them, without ever cleaning them once after that many years. I know some people would be horrified going that long, but I have even seen some that after 15 years, only had a small amount of dirt in them, and inner filter was nice and white, looked like new. Same thing with fuel filters, generally only change them when I have problem. Got a couple tractors with 20 year old fuel filters, and still going great.