My wheels are just like TFs but without the holes, keeps the brake dust at bay. I rarely wash my wheels, and when i do, just a wipe down. Im no expert, but the way i see it, the aluminum should last longer because its not going to rust like the steel will. usually what happens is with chromed steel, you get a scratch and the rust will be able to start and gets under the chrome coating and just goes to town. I cant see anything like that happening with aluminum.