Since the E28 doesn’t have a working odometer I’d like to get something to track miles. The speedometer works fine, and so does the fuel gauge, but I have no idea on miles.

I don’t care about the overall mileage on the vehicle at this point, but it would be nice to know miles traveled to give some rough estimation on mileage for fuel consumption, fluid life, etc.

Looking at something like this on amazon, anyone have recommendations or opinions?