When it was time to change the oil and filter this spring, I did what I always have done for the last 24 years I have owned this BX1800, asked the Kubota dealer to sell me the correct oil filter and oil But when I opened the box with the new filter it was half the size of the old one. I returned it to the dealer and he showed me his computer saying it was the Kubota replacement for the old one. I showed him this photo and asked "but shouldn't it be the same or about the same size?" and he said yes, and swapped out the small one for the larger one. Can someone explain why Kubota would do this?

