I think a lot of it has to do with working conditions as well as greasing habits. Most guys grease every day. We have a few machines that don't have dedicated operators. Rubber tire back hoes, a couple of mini excavators, and especially pit loaders. They sit at the gravel stock pile for months. Truck drivers load themselves, but no one greases until the bucket starts to squeak, even then it is just the bucket that gets the grease. My Mauldin grader has softer pins, and if I don't use a sticky grease, it can wear really fast. My Volvo grader however, the only bad grease is no grease. If I am busy, I grease the blade components every morning, everything else is once a week. U joints are greased when the oil is changed. The red lucas seems to last on them. Excavators in salt water dredging jobs. The red lucas is the only thing that will last the day, everything else gets washed off by 9 o'clock break.