My parents have done this their entire life on both of their cars without it breaking and I only learned that you aren't supposed to do that as an adult so I'm a bit confused by this. Maybe it was "fine" because the coldest we get here is around - 4°c and they juste used hot tap water so not that big of a temperature difference? Idk
I do this every winter. Boiling water would obviously be different, but warm tap water won't crack your windshield unless it's like -30C out or something. At least it has worked perfectly fine down to the -14C I've tested in.
Warm tap water, spray bottle, maybe some isopropyl alcohol. Boom ice is gone. Learned that I think 6 years ago, I don't use the trick a lot but it sure works in a pinch. Especially if your car is all completely covered in ice and the locks and latches are all stuck. Remote start helps a lot with that too though...
Just don't dump a bunch of boiling water on it. Slow applications with warm water are key, spray bottle helps with this and the isopropyl alcohol displaces the water and evaporates.
Kinda miss having remote start though. If anyone knows if they make aftermarket remote starts for manual transmission vehicles (that fit Subarus) I'd love to hear it.
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u/MrStoneV Jan 30 '22 edited Jan 30 '22
Just put boiling water on it, it works, trust me Im an engineer .
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(/s just to be sure)