Long story short, visited a tire shop down the street to mount and balance used, satisfactory, matching tires onto my second set of rims in preparation for getting new winter tires installed on my current rims next week. When picking up my wheels, I immediately noticed that one tire sidewall said OUTSIDE facing outwards, with the other three having the word INSIDE facing outwards. Brought it up to the shop manager, who insisted he is the expert and did it correctly but I could not understand any explanation through his accent. He was also insistent that specific tires be mounted on the front v. the rear, and that I would need to come back a few days later, after driving around with the wheels in the trunk, before the TPMS could be programmed.
My thought is that it’s important to have the tires facing the correct direction or else the manufacturer wouldn’t have it on the tire sidewall in inch-high capital letters! Am I misinformed about something? Can an expert tell me I am safe or not? The tires in question are Ohtsu FP0612 in size 225 45 ZR18 for a 2014 Scion tC. Info on the web indicates these are not unidirectional tires; they have asymmetric tread.