As I have mentioned before, I once valeted cars for a living, and products like this are perfect. You may have no need for this, or just think you have no need. The reality is that your paintwork has probably lost some of the original colour, and also the rich depth of shine this renovator will bring back that showroom finish.
Before I "wax lyrical" about how good it is, I must mention some disadvantages, first the paint on your car is delicate, and using some product without care can destroy your paintwork. Allow me to explain, the restorer or renovator, is a cream, holding a fine mix of aluminium oxide powder. This is an abrasive, and is designed to cut through grime and traffic haze, to leave perfect paintwork behind. If you are too aggressive with any product like this, you will wear through the top coat of paint and be faced with a re-spray situation.
OK that is the bad news out of the way, now here is how to use it properly. First wash the car with an ordinary car shampoo, then rinse and dry. Making sure the bodywork is not hot, give the bottle a good shake. Now apply a small amount of the renovator to a sort cotton cloth, I use old tee shirts, but Autoglym make a special one called a "Perfect Polishing Cloth". Using gentle parallel strokes, you should be able to see small scratches and dull areas disappearing. You should finish with an all over rubbing, using very little pressure. Remove the dry renovator with another piece of soft cloth, and you should be looking at a perfect finish. This is now ready to accept a good quality polish.
It is recommended that this is suitable for machine polishing, but personally I am against it, there is just too much risk of removing too much paint. The renovator is suitable for use on all types of automotive paint, including acrylics, cellulose, metallic and pearlescent, and clear lacquer.
My old bottle has been with me for years, but the price is still visible, the silly thing is, this price is about the same today. (£6 or thereabouts) The plastic bottle holds 325 ml, and has a decent flip-top for easy dispensing. I use a good variety of Autoglym products, including this paint renovator, and I will always recommend it. Autoglym is by Royal Appointment to Her Majesty The Queen, as well as HRH The Prince of Wales. The whole Autoglym range is selected by Aston Martin Lagonda Limited. Plus Jaguar Cars Limited. and also Morgan Motor Co Limited.
I feel I must add a safety note, this product, and similar ones, contain petroleum distillate, and so should be kept out of the reach of children. In case of eye contamination, flush with plenty of water. If swallowed, seek medical help, taking the container with you. As with all products of this type, do not induct vomiting.
Just as a bonus, you can also use this on fibreglass, brass, aluminium, copper, stainless steel, and chrome, very useful, and very good too. See the entire range by Autoglym here.