Here's my story. I'm reading the forums and one was about how to check fluids when you get your tractor home from the dealer. So, after work today I get home and decide to check the front case oil and it's low. It's so low that nothing is registering on the dip stick nor on my picky when I stick it in. I have 56 hours on the tractor and apparantley have been using it like this the whole time. Here is my question. The manual says to use SUDT or SAE 80- SAE 90 Gear Oil. The closest Kubota dealer is over 30 min away but the closest Tractor Supply is 10 min. I bought SAE 80W-90 Multipurpose Gear Lubrication. Are those two the same thing? What little I drained from the front case seamed like the same consistency. Even if it's not the same, it can't be worse using it than the way it was i figure. Thanks for reading. Scott