the icing on the cake for me was when they were rebuilding mine for the 3 time, they left the truck on the lift in the air for the weekend, and left a jack stand under my truck, and the lift slowly lowered itself down, and the jack stand smashed my oil pan! they replaced it and payed for it but i was not to happy about it. i so wanted to beat the living daylights out of this old guy who owned the shop!
but i did get to see my bottom end and how damn clean it was, and the pan was free of any sludge, so regular oil changes are well worth it, i had over 100,000 on the truck at the time. and it all looked like new!