Originally Posted by jon960
Two different upholsters have told me not to use armourall on the tonneau cover as they say it will dry it out causing it to crack, the fact they work for different firms I tend to think there could be some truth in what they say so only use mild soapy water.
They are dead right, after a while armourall will crack the tonneau if exposed to a lot of sunlight.
The best thing I have found for cleaning tonneaus is a product called Red Lion (The only place I know you can get it is Midland Industrial Supplies in Ballarat). It contains a degreaser and a detergent. After a few goes with this the tonneau ends up looking brand new.
By the way I am in no way affiliated with the manufacturers of this product.