2017 Corolla and Forester nearing 60k. Owner's manual for the Forester says every 25k if you tow, otherwise "inspect." Corolla manual says replace at 60k. Both will be getting an exchange. One dealer says, yes, do it at 60-90k, another doesn't recommend until 120-150 if ever. I don't get how dealers can be so different. The 120-150 dealer said they could do a drain and fill if I really wanted it but won't do a machine fluid exchange of all the fluid. The other dealer service advisor said they'll only do a fluid exchange with a machine and if I want a pan drop and filter it's a little extra. Independent mechanic uses a machine and pan drop with new filter for the same price as the exchange at the one dealer. The dealer with the drain and fill charges the same as the one doing the full exchange. Unbelievable how dealers are so different for the same cars.