I recently picked a 'new to me' 2001 LX w/just 108,000 miles. I live in N. Michigan and need to treat the undercarriage. There's already some rust...but pretty good considering it's from Ohio. But I really don't want it to get much worse. Does anyone have any tips/tricks/suggestions on the preparation and application of Fluid Film? My goal is to just get thru this winter and then next year dig in and really make it more rust-proof. How much prep will I need to do? Do I need to wire wheel all the flaky bits before applying? How many cans will it take? Any suggestions would be greatly appreciated since I'm not that familiar with Fluid Film. I moved up from TX where salted roads are not an issue. I also have a '78 FJ40 that's in pretty good shape rust wise considering it's 40 yrs old. Cheers.