Factory recommendations

I just changed my windshield wipers for the first time since I got my car, which was almost 3 years ago. Is that dangerous? The packaging says they recommend changing the wipers every 6 months. It’s also recommended that you change your engine oil every 3,000 miles or 3 months. I shoot for about 5,000 miles. And thanks to Jerry for pointing this one out: you shampoo instructions say that you should lather, rinse, and guess what…REPEAT. Are these recommendations all there just to get us to spend more money or what?

Talk to me, Goose.

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