Ask Honest John

Most recently answered car cleaning questions
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?
Which is the best alloy wheel polish/protector?
I am the proud owner of a sparkly-painted 12 day old Maserati. It has a ceramic coating so how worried do I need to be about the Saharan dust on the paintwork?