Yes 303 is what I use it’s probably the best thing you can use on coated leather which is what we have in our LX570, plus the windshield and side windows on our Lexus LX 570 are laminate glass and prevent 99% of UV rays from ever touching the interior. Also since 2010 the clear coat on our exterior paint has been upgraded and provides improved UV protection and durability and has a self healing additive that corrects minor scratches on its own.I never thought to use it on leather either. But I read the instructions, which listed leather. I used it on all the leather on my 16, and it worked just as great as it does on everything else.