Switching to 185 or 195 tires
I currently have Michelin Pilot Sport A/S 3's on my 2011 Insight. They are incredible, but the tread has hit 4/32 and it's time to replace them.
Unfortunately, Michelin no longer makes these in the 175/65/15 size (they list them on their website as "Limited Availability", but I've never seen them available anywhere for purchase).
I have two criteria for new tires:
1) I drive on California highways with terrible drainage. Wet traction and hydroplaning resistance are my primary concern.
2) I'd like to still get 35mpg+. I use to get ~40mpg on the stock Dunlops. That went down to ~36mpg on the Pilots. That's ok, as I feel a ton safer with the Pilots, but I'd prefer to not go down to 30mpg.
I can't find any 175/65/15 tires which meet or exceed the Pilots' wet performance (using Tire Rack reviews). If I go to 185/60/15, the Pirelli P4 Four Seasons Plus look nice. If I go to 195/60/15, I can get Michelin Premier A/S tires.
I'm concerned about switching to a non-OEM size, however:
Has anybody went to 185 or 195 tires and had them rub against the car during turns?
Has anybody experienced a greater than 5mpg hit with 185 or 195 tires?
I realize that my speedometer will be ~1mph off.
I've seen old posts mentioning 195's, but I haven't seen any hard data on what they do to mpg, or whether anybody went to 195 and had them *not* fit.