u/ObiviousCringe

I have a 2016 Volvo s60 inscription and it uses the titania wheels. When I search up what tires they use it says that it uses 235/40R18 tires, however, on my car I have 235/45R18 tires? Is this wrong or can they take two different kinds of tires.

I have 85k miles in my 2016 Volvo s60 with no history of a transmission service ever being done. Should either do a drain and fill or a complete flush at the dealership? There are also no issues with the transmission and how it drives.