Newer models list what they record in the owner's manual. The
dealership can tell you for older models.
I think mine said that it records a couple of seconds. Considering how
fast crashes happen, that's a long time.
Doesn't the computer that stores info to generate the average miles per
gallon and average speed have to store a series of speedometer readings?
Anyone know what the algorithm is or how many data points it keeps?
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