I have been in the motor trade for 46 years and the G3 Farecla Advanced Liquid compound is by far the best cutting compound in liquid form I have encountered. Used with a machine polisher it does a fantastic job of scraches, blemishes and general freshening up of paintwork. It does really well on oxidised paintwork from sun exposure. Just remember you need a little water on the paintwork, I use a cleaned out glass cleaner bottle for this, just squirt a little on the paintwork and away you go. Please remember to use paper overalls doing this, if you use too much water it will spray everywhere. WASH YOUR HANDS AFTER THE JOB IS DONE. You do not want this in your eyes.