Interesting that the prior owner left a log book with all that information. My 1964 190d has the same thing. I have every fill up with mileage and cost as well as maintenance from 1964 until 2004 when the car was parked. I wonder if it had to do with fuel tax or something? The prior owner drove all around the west coast from Oregon all the way to Palmer, Alaska, Bozeman, Montana, Wyoming, Idaho, Utah, Washington, all around the Pacific Northwest. I wish I could recreate the trip. Very cool stuff.