The faded Kubota paint is commonly referred to as : "Kubota pink" !
seen more than one sitting at farms and ranches, faded to almost pink.
at one point some of the M series hoods and especially the plastic roof, woudl fade to pink in a short time--Kubota was eating a few of those but it was a very small number of them and the 'bulletin' only lasted I think 2 year.
had one at the shop that got dinged in a tornado, when I worked there. I watched the tornado pass by the building, standing outside and it got really windy for about 30 seconds and then I seen the 'stuff' circling around. Anyway some kind of debris hit the hood of a M7040 and that was the only damage that any of us saw. Boss had a $5000 deductible on that stuff so claiming it on insurance would've cost 5 grand. Thus, we had a local body and paint guy pick up the hood and refinish it-and it came out beautiful, better than new. I told him if he did any more for us, don't do such a good job! Anyway, the tractor sold and a number of years later I drove past a certain M7040 that had severely faded fender flares, roof, wheels but the hood looked brand new. They were having a yard sale so I stopped in and we got to talking about his pink tractor. Said he didn't know why the hood wasn't faded but everythign else was. I asked him if we could look at the bottom of the hood, so he popped it up and sure enough there was the evidence of that certain ding that the body guy fixed so I knew it was that one. Automotive paint is a lot higher quality than what Kubota used at the time-probably still is the same way.
Had some guys complain about it said their 160 year old john deere didn't fade. Well they fade too, believe me. We used to sell them and if they sat on the yard more than about a year, the plastic hood would fade and nothing would bring the color back. If we caught it early enough, a diesel soaked rag would make it vibrant again but eventually it would "bake" off and go back to faded again. Quite a few of those got sold with diesel soaked hoods because Deere wouldn't pay for em. That was around 2000-2003 or 4.