Yes, this is a fairly recent scam that the windshield washer fluid manufacturers have come up with. You see, they can produce the product cheaper, yet sell it for the same price, if they don't include the anti-freeze chemical(s). So, there is now a summer product and a winter product.

They did this without telling anybody, so when you put the summer product in you will find it freezes when the weather is cold. You can avoid this by purging the summer product each fall and buying winter product. Yup, the manufacturer wins again when you have to do this.

So, the solution is - once burned twice shy - buy only the product that includes anti-freeze.

I would like to see someone who sprays the summer blend on their windshield, only to have it freeze over and cause a wreck, sue the manufacturers of the summer blend silly. Hmm.......

Ken300D

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1982 300D at 351K miles
1984 300SD at 217K miles
1987 300D at 370K miles