Hmm…
DK is correct as paint is sealed with a clearcoat and cannot soak in any oils. However, “they� might have first meant that your paint should be polished with an abrasive containing lubricating oils before you seal the paint with Klasse. The oils wont soak in the paint, but will definitely help remove swirls or surface problems.
You see Klasse and most other polymer sealants such as Zaino are different from most products. Its purpose is to bond to the paint and seal leaving a reflective, protective layer. But if you use it over an improperly prepped vehicle, it will do no good.
What do you mean by fair results? Not much better than new? Silver is harder to have a “shine� compared to darker colors. I suggest you to completely give your car a Dawn wash and try a paint cleaner such as Pinnacle PCL or P21S. Then use a mild abrasive such as 3M SMR or Meguiar’s #7 2.0 preferably with a PC to remove any surface problems like swirls or oxidation. Wash your car again with Dawn to remove any oils as it will prohibit bonding before applying the Klasse.
Remember, techniques are much more important than the product alone. So keep practicing and experiment with the application. Use plush Microfiber towels or thick 100% cotton bath towels and foam applicators. I think of detailing like painting… an experienced artist with quality brushes and cheap Crayola paint would paint <em class='bbc'>much[/i] better than an inexperienced adult with expensive Grumbacher paints and cheap toothbrushes.
Good luck and most importantly, have fun!
~bw
Welcome to the forum!