The stock 16" tires have a larger diameter than the stock 17" tires. If one goes with 17x8 wheels TireRack actually recommends 225/50-17. I really should look up the specs and not refer to TireRack. The speedometer can read faster than actual speed, but not a good idea to go slower than actual speed.
Right Michelin..THE BEST....Just traded in my Prius 2008 for a Prius v trim 5. Had 2 sets of michelins first set 80,000 miles..second set 40,000 when traded in and still had a lot of rubber.... First Prius came with Goodyear tires..they where garbage. My Prius v came with Toyo, hope these are better
High on my list too, but they are quite expensive and I want better snow performance so I think I'll buy Nokian WG3s
We just drove a 2000km round trip, using our GPS for speed and mileage, vs the trip-odometer and cars computer readout were very close with 215/55r17. There was about 1 km/hr (.6mph) difference, the larger diameter tires slightly over corrected the speedo error. It is so close as the tires wear it will be dead on. In fact the ride quality is better, smoother and handling seems to be the same.
It's not due to error that speedometers read high, it's a requirement. The odometer however, should be quite accurate, with the stock tires. That's also a requirement. Using larger diameter tires to "correct" the speedometer will throw the odometer off.
Yep, the tires on my car were one of the first things I changed out; Had some mismatched tires so I went with Michelin energy saver a/s. Ideal tires for the mostly city, some highway driving; mostly flat. Without even trying or looking at the dash, I always get about 51 mpg on the highway trips, something like around 49 or 50 in town. I've done better than that when I do the pulse/glide thing, no hard acceleration, etc. Mostly at the recommended tires pressure on the door jamb but I might add air to squeeze a little more mileage out. Can't go wrong with Michelin.
