Ask Honest John

Most recently answered car cleaning questions
My 2013 Volkswagen Up in white is gradually becoming an Up in white with green edges. The furry side window seal/wiper is growing green moss or algae. It doesn't get washed often enough I know, but how...
I own a Focus ST which has factory silver grey 19-inch alloys. The trouble is once cleaned they are filthy in a few days and virtually black in about a week. I've tried car polish on them but the result...
I have stains on my car seats. I've tried vinegar and bicarbonate soda, as well as vanish, but they make the seats worse. Can you recommend another option?
How do I clean green mould off of my soft top?
On a scale of light to dark, and solid to pearlescent, what's the best paint colour to spend the least amount of time cleaning?
The internal glass on my car always has a thin, grimy film on it. I have used soapy water followed by commercial glass cleaner, but can't get rid of it. I have also tried my own water/vinegar mix, but...
I have grubby marks and mud splatters on the roof lining of my 2015 Land Rover Discovery (from my dog). What is the best product and best technique for removing them without ruining the lining ?
I want to know some good cleaning products - the whole works inside and out. Could you recommend a kit to use with all the various types as I'm so confused by all the jargon. Even within shampoos theres...
I used my Mazda 6 for a journey back from the continent and during the trip one disk pad wore out. There is now a deposit of steel powder on the alloy wheel which I can't remove. Can you suggest how?
I note the email on Saturday 20 July regarding the smell of stale smoke in cars. An old and tested way to rid a vehicle of smells is to place a saucer or some suitable container of malt vinegar in the...