The theory of why not to flush is because it will knock stuff lose and it will end up in places that will cause damage (passages, really fill the filter, etc). And I'd say that certainly is possible, and a good bet from experience. My one experience with flushing is that I'd surprised everyone one by taking a 3 day weekend, and came home early. On the way home off the toll road I stopped at the "Jiffy Lube" for just a quick oil change so I didn't have to crawl under it. That's all I wanted. But the Jiffy Lube computer said with like 160K miles, should get a flush, and..., and... I went from like $39.95 on the A/T Cummins to like $159.95 real quick, but I wasn't crawling under it on my 3 day weekend. I got a free radiator out of it on the 160K '96 Dodge, because they broke one of the cooling line fittings off for the trans at the radiator. Just had to sit there an extra 4 hours waiting for a new radiator to show up. About a month later I noticed a different whining sound to the trans, so decided to just pickup a new filter and change it as always do anyway. When I pulled the pan, the magnet that catches metal particals looked like nothing I've ever seen before, but thankfully it did it's thing. Was a ton of metal particals that it caught. You couldn't even tell that it was a magnet until I wiped those particals off. And after setting a good 1/2 hour, when I took the filter down, it was like a dam broke open with all of the fluid finally draining down. The filter was pretty clogged. My point? If you have it flushed, so be it. It's probably a good idea. Don't forget to change the filter and clean the insides too, AFTERWARDS. Much of that crap being flushed aint going to get flushed out, it will just get broken loose and flushed into at least the filter. That was my one and only flushing experience. That Dodge has 240K on it and still runs good, and pretty much still looks good. No more "Jiffy Lube" for a quick anything on the fly for me either. Like 3 out of 3 times, they broke something. Radiator, stripped 2 lug nuts rotating tires that had 10K on them and couldn't get them off, and I forget what the other was. But... no more Jiffy Lube, they're just too expensive in the long run, for me. Mark
|