So I bought some acf50 as while the car is being stored over winter I though it would be good to add some protection. But where should I be putting it? Are there some known spots I should be focused on or is it the sort of thing that I should be spraying everywhere once I drop the undertrays?
Just done mine and removed arch liners first and cleaned out the crud. Then sprayed it everywhere I could reach. Hubs were hardest as you need to avoid getting the stuff on the disks, but brake cleaner will remove it if you are a bit over enthusiastic. I did not remove the undertrays as I had done that in the summer. But I did spray into any orrifice I could find.
I do have a well protected garage floor as a result of all the drips etc!