Ask Honest John

Most recently answered car cleaning questions
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?
The 'chrome' surrounds on the windows of my Porsche Macan S have taken on a white, milky look and I cannot get the trim clean. Not knowing if the trim is chrome, aluminium or even plastic look-alike I...
The glass on the headlights of my Jaguar XK8 are becoming misty, not bright and clear as they should be. I'd be reluctant to replace them - they are only sold as a complete unit at, I believe, £200. Is...
What can I use to get rid of the marks from wipers on a windscreen? They are not deep but they are visible and I don't want to use the drill. I tried with Autoglym polish but it's not working?

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