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I don't understand what the objective is here
Posted by Boris Bubbanov [Email] (more from Boris Bubbanov) on Mon, 26 Jun 2017 14:25:38
In Reply to: Re: ATF Fluid Flush 2004 arc, cheaptech [Profile/Gallery]
, Mon, 26 Jun 2017 11:42:18
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If you do all your own wrenching, and you have access to your car 12 months roughly per year, unless you're driving to Alaska and back, why do you want to replace all the fluid, all at once, and then I presume forget about the automatic for another 2 years?
To me, you can restore enough of the properties the existing fluid that it had 15,000 miles ago, refreshing about 30% of the fluid, and you simply repeat this process every 15,000 miles or so for the remaining life of the automobile. Toyota T-IV is not like milk, where the stuff is 100% one day then poison the next day. Your objective is just to have fluid that's 50% cleaner than the next guy's fluid. I think moreover, that Aisin designed this box so it wasn't easy to replace the fluid all at once - they didn't want us doing this.
An old story: I worked at an automatic transmission supply house in the late 1970s and one of our guys even scavenged the old asbestos clutch packs out of junked transmissions because they outperformed the product found to replace the asbestos. These guys were always nervous about changing all the fluid, all at once. Maybe valve bodies don't get stuck like they used to when subjected to something unexpected, but how much testing of this flush process has ever been done? Isn't this a bit of trying to fix something that's not broken?
No harm intended. Just wondering.
posted by 73.177.62...
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