You are welcome.
Since everything here is digital, you might as well count off the pulses as you send them to the cluster until it has received
4712 x 1.6093 x {however many miles you want to add}
You could cycle the switched power input, say, every 2 million pulses or
2 000 000 / 4712 / 1.6093 = 264 miles
EDIT: To play it safe, I would not pulse the input at more than roughly 330 hz – the equivalent of 250 km/h (155 mph).