Vinyl fabric cleaner.

Not sure about the cleaning product but I use a very soft nail brush and rather than scrub with it just sort of wobble it about to allow the bristles to penetrate into the fibres of the material or the grain of the vinyl.

I use wonderwipes for all sorts of interior cleaning jobs...but always do a inconspicuous test first , just to be safe. Particularly good on carpet stains.

www.toolstation.com/everbuild-multi-use-wonder-wipes/p56601

Best laid plans and all that. No WWs at my local Toolstation and no sign of the Gliptone yet. Don't you just love next day delivery? Anyway, I didn't spend thirty years of my life repairing washing machines without learning a bit about cleaning products. The answer is Ariel. Yes, the laundry detergent. In powder form - there are no bleaching agents is any liquid detergent and, by golly, I'm going to need them.

Mix up a nice thick paste in warm water. It's a biological detergent, so it needs a bit of warmth to activate the enzymes. Using the nail brush I found in the kitchen, spread the paste thinly across the chosen seat cover. Work it in gently, then scrub gently. Then vigorously when nothing appears to be happening. Little circles across the fabric and long sweeps down the seams and stitching. Rinse freely and towel dry. Be amazed at the results - I certainly was!

VOF707J by Penguin 45, on Flickr

Before. This one's not too bad, but you can see the ingrained dirt.

VOF707J by Penguin 45, on Flickr

After. Not bad at all. Much worse to come...

VOF707J by Penguin 45, on Flickr

Before and after of the replacement seat covers. Remarkable difference.

VOF707J by Penguin 45, on Flickr

Passenger side seat base. Fortunately, it's being replaced, so I'm not even going to try cleaning it.

VOF707J by Penguin 45, on Flickr

The drivers side one is staying though. After just the bolster has been cleaned.

VOF707J by Penguin 45, on Flickr

There we go. Covers replaced as required and all cleaned. Not absolutely perfect, but, my goodness, what a difference.

The Gliptone will no doubt turn up during the week, so I'll go over them again with that and see if there is any notable difference to be had.

Chris.