Yes, they make good profit. Yes, they do deteriorate over time from UV
light and heat. OTOH it is good to replace them after a year or two
depending on use. If the rubber breaks off it is possible to scratch the
windshield. At four years, I'd definitely change them.
Some auto repair shops will replace the entire car if they can get
away with it.
A local Saturn Dealer started advertising $19.95 oil changes a few
years ago which was a pretty good deal. I figure a certain amount of
"sale building" was excusable.
HOWEVER....after a year or so it started getting out of hand, sexist
and discriminatory. I seldom had them mention any more than wiper
blades or belts. But I saw them work on women, especially older women
with tires, brakes, plugs, etc and get away with it.
They only tried it to my wife once! The tech came out to the crowded
waiting room declaring the brakes were worn and dangerous. She
informed him LOUDLY...."That's odd. Our Mechanic did a FULL BRAKE JOB
ON THE CAR LAST WEEEEEEK!
Got quiet. We quit using them.
I'm sure profit enters into the equation. But a more compelling argument is
a subsequent accident involving rainy weather.
"I had my car in the shop. They didn't tell me the wipers were bad. It's all
their fault granny is dead. I want compensation for pain and suffering and
loss of consortium. And throw in some punative damages too."
I bet that at 4 years they are shot, but it is easy enough to see for
yourself. Look at a new wiper blade from the side. The corners are sharp
and the profile is symmetrical.
Now look at your 4 year old blades. From sitting compressed for 4 years
they will have taken a set and this prevents them from working properly.
Rain or not they are only good for about a year.
About the time I had mastered getting the toothpaste back in the tube, then
On Mar 8, 11:35 am, stayin@home. (Way Back Jack) wrote:
in my experience yes, they get hard and then won't flip over. The new
silicone blades work great for low mileage cars as they don't do
this. I still have ones (PIAA brand - usually wouldn't consider their
products because they are best known for ricer lights, but their
wipers are actually good) on my 944 that I put on over xmas break
either 2 or 3 years ago. Now the ones on my company car, even the
good silicone ones, seem to last a year and a half tops before the
edges are literally worn out and they start to smear, but at least
they are still supple unlike the parts store ones.
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