Ask Honest John

Most recently answered car cleaning questions
How should the fabric cabriolet roof on a 2016 DS3 be maintained? It was Scotch Guarded 3 years ago.
I am getting a new car next week and I want to apply a ceramic or graphine liquid myself to the car in the open. I want a good shine for a long time. Which shall I use, or should I apply both? Any favourites?
My Toyota C-HR was treated with a product called Diamondbrite. Unfortunately the dealer has sprayed all the glass as well as the paintwork with the product. This causes the windscreen to badly smear in...
Which is best to dry cars, chamois or microfibre?
Is waterless car cleaning safe?
My Suzuki Grand Vitara is suffering from black / green mould / algae on the roof. I have tried washing it off with a good quality wash and wax product. It did not work well. Have you any suggestion how...
When I bought my Cupra Formentor a year ago it was treated with Gen3 ceramic. A bottle of their shampoo was supplied which I have now used up. Can I safely use Meguiars Ceramic Wash and Wax? Although...
How can I clean the bugs off the mesh sunroof wind deflector?
Can you suggest a tool and perhaps a cleaning product to clean the inside of my car windscreen? Steep angled screens make this an awkward job.
Which is the best product for polishing/preserving alloy wheels?