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Hi, yes definitely screen wash and it says it has methanol in, the Tesco one that is. I just bought some new stuff so it is a case of draining the old, cleaning and putting new in. I have Ford Focus and the wheel and arch has to come off along with the tank. Last time it happened I put long piece of tubing in at the top drained it out then put in a few lots of clean water to flush it out and it worked without the need to take it to the garage so hoping it will work this time.