Why you shouldn’t wash your car with dishwashing liquid

Smugs

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Dec 16, 2017
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What they don't mention is that dishwashing liquid contains a lot of salt to aid with the rinsing of the dishes, and we all know what salt does to metal. This is also why I do not have my windscreen washed when filling up. A lot of service stations use dishwashing liquid to wash windscreens..
 
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