You guys got it all wrong. It's probably a 5 digit and he thinks the white dial is ones, when it's really tenths. That would mean he drove 18.8 miles, not 188. 18.8 vs the actual 22 is about the difference he would get by installing the 33s.
You'd think people would realize the white dial is tenths but this isn't the first time people have come on here posting about it. I'll never forget the guy who thought he was putting 100,000 miles on his truck each year when in fact it was only 10,000. He was all excited when it turned "Three Hundred Thousand Miles!!!" when it was actually only 30,000.
Furthermore, the speedometer needle and the odometer are mechanically coupled. If he was racking up miles that fast the speedometer needle would have shown 800 miles per hour or something. This is just another classic case of "1/10s digit confusion".