I was just very surprised by the amount of rust compared to my to older cars that's why I asked the question. I love the Mazda but from what I have seen from a sample of 1 it is not as well protected as my other cars. Maybe it just looks worse from not being loved for the last 6 months as it waited for a new owner. My other car spent 4 years living 1 block from the ocean and with zero thought to any rust prevention looks better than a car with 2 winters under its belt. I just will need to make sure I stay ahead of the rust as part of my PM procedure.
Just joined the club and question on rust
- Thread starter Fish1
- Start date
I was just very surprised by the amount of rust compared to my to older cars that's why I asked the question. I love the Mazda but from what I have seen from a sample of 1 it is not as well protected as my other cars. Maybe it just looks worse from not being loved for the last 6 months as it waited for a new owner. My other car spent 4 years living 1 block from the ocean and with zero thought to any rust prevention looks better than a car with 2 winters under its belt. I just will need to make sure I stay ahead of the rust as part of my PM procedure.
Even if they look exactly the same one has 10 more winters wouldn't you expect an almost new car to better? I'm not trying to be negative just noticed the rust when starting to install my hitch and wanted to get some thoughts from more experienced mazda owners. I had a jeep years ago that had the frame rust through after 9 years a learned after this was common and should have been cleaning dirt from a specific spot. Just wanted to learn from past mistakes.
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- 2022 2.5GT
There is your answer. Cars do not like standing for long periods and always pick up surface rust under those conditions. Actually, the very act of using them cleans them up as they pass through the climatic conditions. If you use it daily, look again in another six months and you will find that must of that red rust has gone (although the basic corrosion will still of course be there).
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- 2014 QX70 AWD
The bolts don't bother me too much... more concerned about the bigger substantial pieces. Having said that, I did check out the CRV for comparison, and it has less rust than the CX5. No rust on the bolts either.
(dunno)
mazdadude
ZOOOOOOOOOM ZOOOOOOOOOM
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- '16.5 Mazda CX-5 Touring
The road deicing salt has changed. It is now MAGNESIUM CHLORIDE, and much more corrosive than ever to vehicles.
Here are some articles that describe the new damage.
https://www.washingtonpost.com/local/trafficandcommuting/worse-than-salt-brine-sprayed-on-roads-will-munch-your-car-to-pieces/2015/02/22/b89294e6-b949-11e4-aa05-1ce812b3fdd2_story.html?utm_term=.854c07fd40f7
http://www.hcn.org/issues/270/14621
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- 2014 QX70 AWD
Yeah, I recall a local news report about that stuff a number of years back. It was causing excessive and premature corrosion/degradation to brake lines and its trial use was discontinued in my area.
My thoughts exactly. Now, imagine taking those nuts off when you replace those parts... Those links will have to be replaced eventually. There is no way to use hex key now and it will get worse. I had to cut those off on my old Protege.
I had to cut the links on my former Subaru and Volvo as well... It's normal. That's exactly why mechanics have torches on standby - heating bolts helps break the rust that's seizing them on. Or... cut the offending hardware off and its replaced along with the new part. Standard practice.
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- Plano, Texas, USA
Don't think my comments border on ridiculous. Everything is comparative. We've seen several members in this thread, after "compared" thier CX-5 with other vehicles in the same environment, concluded that the rust condition is indeed worse on CX-5. The rust issues on rear brakes and liftgate struts I mentioned on the CX-5 are resulted a TSB and a recall which involved 2.3 million Mazda vehicles. In addition, those bolts and nuts used in undercarriage suspension area are supposed to be galvanized to prevent rust. They should resist road salt at least for the first couple of years without any additional rust proofing. Based on the rust condition presented here it seems Mazda uses either zinc-plated or poorly galvanized bolts and nuts for those suspension components and they won't prevent the rust well in the severe environment.
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- 2024 CX5 Akera G25
Gee, all this makes me very glad that I live in a temperate climate with no winter snow and ice on the roads!
I am however an avid salt water fisherman and live only a mile from the Bay. Launch my boat there regularly towed behind my CX5. No sign of any rust under my car, or my previous Cx5.
On our boat trailers, even though they are galvanised steel, once the gal coating has weathered in over a few months, many of us, myself included, spray them all over with lanolin - a natural grease from sheep wool. It is very good at repelling water and preventing corrosion, used here in lots of heavy duty marine applications for that reason. It is also a dilectric grease.
You can get it as a grease or spray.
I just use a cheap garden pressure sprayer to spray the lanolin on my trailer, then throw it away. Takes half a gallon to give it a good coating. I redo it every couple of years. It dries off in a day or two.
If I was in your situation, I would be spraying the underneath of my car with this stuff as soon as I got it home. If it can protect a boat trailer that is submerged in salt water, it should do the job for you as well.
This is the one I use:
http://woolube.com.au/pages/products/lubricants/ozspray-industry-extra-grade
I am however an avid salt water fisherman and live only a mile from the Bay. Launch my boat there regularly towed behind my CX5. No sign of any rust under my car, or my previous Cx5.
On our boat trailers, even though they are galvanised steel, once the gal coating has weathered in over a few months, many of us, myself included, spray them all over with lanolin - a natural grease from sheep wool. It is very good at repelling water and preventing corrosion, used here in lots of heavy duty marine applications for that reason. It is also a dilectric grease.
You can get it as a grease or spray.
I just use a cheap garden pressure sprayer to spray the lanolin on my trailer, then throw it away. Takes half a gallon to give it a good coating. I redo it every couple of years. It dries off in a day or two.
If I was in your situation, I would be spraying the underneath of my car with this stuff as soon as I got it home. If it can protect a boat trailer that is submerged in salt water, it should do the job for you as well.
This is the one I use:
http://woolube.com.au/pages/products/lubricants/ozspray-industry-extra-grade
