Kenwood TM -D700 noisy fan

Was dealing with an older Kenwood TM D700 VHF/UHF mobile. Fan was really noisy to the point of being unusable in the home qth. I googled the problem and found that if you remove the fan from the casing, peel off the fan identity sticker and add a few drops of light oil the noise stops… fyi to all and 73 for now.