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Re: It's a pretty harsh climate up here... Posted by Snowmobile [Email]  (#686)  [Profile/Gallery]
(more from Snowmobile) on Thu, 18 Apr 2013 10:00:53
In Reply to: Re: It's a pretty harsh climate up here..., dtechakacheaptech, Thu, 18 Apr 2013 09:24:19 Members do not see ads below this line. - Help Keep This Site Online - Signup |
Yeah, I wouldn't advocate buying those electronic rust prevention systems. The idea works very well on ships where the body (hull) is immersed in electrolyte (salt water), but I suspect a car isn't necessarily going to have adequate continuity for that application... I think they are very marketable to people who want to look after the car but don't want to annually apply messy oil sprays. My inlaws I think fall into that category and were sold on it because it came with a 10 year rust prevention warranty. Obviously it didn't really work that well, but they only plan to keep the car about 10 years anyway so they can keep falling back on the warranty if need be.
We annually oil spray the cars - most of it is internal, sprayed through holes in the sills, doors and to access the rear fender. The holes get plugged after. I do touch ups, especially whenever I do work on the cars. Not too expensive, leaves the cars messy, but does prolong their life. The only parts that have rusted in 20 years on the older saabs are areas that didn't get spray or where the original factory paint was damaged/repaired. It's really easy to tell if an area wasn't sprayed: clean and dry vs oily and grubby! I looked over an identical 1993 c900 but not oil sprayed side by side my own... surface rust everywhere in the nooks and crannies... nothing structural, but just setting in (and ugly).. this at 20 years old without spray.
You may be right that the corrosion resistance of some of the more utilitarian cars may be correlated to the buyer type: with less care any car will more easily rust. Euro car buyers probably are more willing to put more into their "investments", but with the popularity of leasing over the past decade or 2, I'm not sure if that is as true as it used to be... We buy all our cars used and keep them a long time. I'm cheap! The 1993 was completely free of rust when we bought it at 5 years old even though it had never been oil sprayed. Today it's more or less the same level of rust as the 9-5 even though it has endured about a dozen winters.
I have noticed that Audis, Volvos, Merc, BMW seem to hold up pretty well wrt rust... VW seems to use a ton of galvanization, but what is interesting is their cars seem to flake the paint off more easily... but then they take longer to rust... Volvos also flake paint off and you can see the galvanization for months before any rust happens... not so with a c900... the epoxy primer on the c900 was something else! that was what made them good, not galvanization...
, Mon, 8 Apr 2013 05:46:17, Thu, 18 Apr 2013 07:12:18, Thu, 18 Apr 2013 10:00:53 <-- Viewing This Message, Mon, 8 Apr 2013 06:31:34
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