I fall more in line with Greg. I don't thrive on the rush like he does, but I seem to be in that position often. I once had a SS bay making a weird squeaking noise that I had never heard before. It wasn't the belt, so when the customer stopped using it I removed the oil cap to check the oil. When smoke exited the hole I felt I was on the right track in locating my problem. The pump had a sticker with the date of install (2005). It appears that 10 years is the limit on not changing or checking pump oil. The pump seized as it cooled down. This was the Friday before July 4th weekend and this was the busiest bay at my busiest wash. If at all possible I needed to get this bay to live through the weekend. There was about 2" of air compressor oil in a gallon jug nearby so I just dumped that in there, probably overfilling the pump. What did I have to lose? I then stuck a crow bar through the spokes in the pulley and managed to get it to turn. It freed up much better than I thought it would. I fired it up and it worked great, not even knocking. Knowing there was no way that it would live through the weekend, I called Greg at Arimitsu and told him to get me a pump on the way. After telling him what I had done, he told me that he had a brand new crankcase assy. that had been robbed of it's head. He sold me that at a pretty good price so I told him to ship it to me immediately. The pump lived through the weekend and still sounded fine, so when the part arrived I just stuck it on the shelf and decided I would just wait until the pump grenaded. That was almost three years ago. The part is still on the shelf, air compressor oil still in the pump, and it sounds as good as any other pump I have. I even put seals in it last summer when it started pulsating. Maintenance...who needs it?