| Have used Turtle Wax interior 1 - interior upholstry cleaner - comes with a big harsh plastic brush on the end (yellow and green can) - so I used a soft nail brush instead as the brush on the end of the can looked as though it would do more harm than good. Had spilt a can of pop on the seat, but after using the brush and then wiping with a damp cloth the water/stain type marks had gone. Think you can get this stuff from Halfords. | 
