So I recently change my oil on my Jeep 2000 4.0 with about 116k miles on it. I got about 8in of snow where I work and decided to drive my Jeep to work. I noticed that my oil pressure gauge is reading 80psi at about 15/20mph and 40psi at idle. I checked my oil level and it seems normal but am planning on checking again just to make sure. Could it be the unit sending unit?