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Discussion Starter · #1 ·
Today I was at the dealership and noticed that the 2016 spark and Malibu now feature a type of textured paint along the very edge of the rocker panels all the way to the pinch weld. It is for rock chip protection. I didn't get a chance to look at any 2016 model Cruze. I was wondering do they also feature this? Very impressed with gm taking more efforts to protect cars from corrosion. I know the Cruze itself was one of cars in which gm highlighted to have better corrosion resistance when it first debuted here in the US. Seems like they are continuing to push forward with that trend in other models.
 

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Wow! My '77 Corolla SR5 Liftback had that.
 

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Before GM pioneered the use of double-sided galvanized steel in its vehicles MY1991, there was the Ford Duraguard System in MY1977. It included anti-chip treatments at the rockers like you're describing above.
 

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Discussion Starter · #4 ·
Wow I had no idea that there was ever an automobile manufacture that brave enough to actually intentionally build a feature on their cars to take on road salt. I just googled that ford duraguard system and it brought up a news paper article from the 70s saying its main purpose was just that...to take on road salt! I always thought it was ironic that motor city was built over a salt mine, yet manufacturers did so little to protect cars from salt corrosion. I thought it was on purpose to get you to buy a new model eventually (aka planned obsolescence), but to think ford actually embraced trying to fight road salt back in the 70s is quite astounding. If what gm is doing to these models is similar and is now being done in conjunction with the improved steel of modern vehicles, we could possibly have vehicles that actually last long in the north! Makes me even more impressed with this feature.
 

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Discussion Starter · #5 ·
They shouldn't have ever quit putting protection like that on cars just because the galvanized steel. They should have simply put it on the galvanized steel as well, which seems like what gm is doing on these new cars.
 

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Well if gm has been using galvanized steel since 1991 it isn't working. Give any vehicle 10 years in nova Scotia and it needs rocker panels and/or cab corners. Moisture gets in and it can't get out so it rots from the inside out.
 
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I put my own truck liner undercoating on my cruze. The color is almost a smurf blue to dark blue. IMO still holding up but a PITA to tape up everything you don't want coated. 2.5 rolls of painters tape :(
 

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Ford brought the Duraguard System to market because they were pretty much forced to by the market and government.

Seeing cars driving around with massive rust holes was commonplace in the 1970s. I personally knew two people who owned Ford Torinos that had completely rusted through in two years. Ford was under intense pressure. And in 1977 the government of Canada took action requiring all manufactures to warrant their cars from rust perforation for three years.

The three things you can do today to keep your car from rusting in 10 years are:

1) Paint protection film on all leading edges. Sold by 3m, X-pel and others, it's not cheap. But it works. $$$$ one time.

2) Splash guards. Cheap, and if installed properly, it works. $$$ one time.

3) Wash your car once a week. Not inexpensive, but some car washes you can subscribe to for a monthly fee. $$ a month.

But most people will drop $30-40K for a new ride - but balk at the above because it's just too expensive. That's what academics call a false economy. Saving money so you can spend more a few years down the road.
 

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Huh. The rockers and lower regions of our 74 BMW is like that. I didn't actually know why, but that makes sense.
 
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