Bilt Hamber auto-wheel

Price: £12.95 Size: 1,000ml Contact: www.bilthamber.com

Essex-based Bilt Hamber was one of the pioneers of wheel cleaners that turn a deep purple or red as they react with brake dust. It has made this test its own in recent years and retains its crown, but rivals have caught up.

There was very little between our top four on cleaning power, with all a step ahead of the competition. But they’ve yet to match Bilt Hamber’s overall package. That litre pack makes it one of the more cost-effective options, plus it includes a handy wheel brush. It’s also one of the bettersmelling ‘red’ cleaners.