Lexus is a softer paint so will scratch more easily. . Maybee your jsut washing and waxing your car -- this wont diminish scratches it will jsut cover them up.
The meguires scratch X i have found works great with spot scratches, better then other brands I have come across, this will fix your scratches.
Follow this up with a proper sealant, and you shodl be set.
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