Join Date: Mar 2015
Location: Rolling Prairie, Ind
Golden, all of my Japanese vehicles run 2-3mph fast, must be a cultural thing to protect us from ourselves, but my honda's, toyota's, subaru's and of course the yammyhaw all show 2-3mph fast at about 60-70mph and as you noted most gain the faster you go. Now as far as the gps accuracy goes good luck with that, a while ago we had a top speed thread where the gps was considered accurate but after contacting garmin and Tom-Tom and getting the mealy mouthed corporate legal no answer response from both I wouldn't bet on their accuracy. But I'll say that checking a couple vehicles with 2 different garmins and a Tom-Tom that all agree I feel more confident that they are more accurate than the speedo is.