I have a Ford Edge that has the lower plastic cladding all around, I use Stoners Trim Shine. I get it my local Wal Mart here in Canada. I have tried others, gels mostly and they are crap compared to the Trim Shine. Spray it on and wipe. Lasts a long time also. For interior I used nothing, wipe the dash etc with a damp cloth. No dressing on the dash as the shine reflected back onto the windshield is more noticeable. Less shine the better..