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#1
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transmission flushes?
What do you think of transmission flushes or changing transmission fluid
more often than specified in owners masuals (usually 100,00 miles or never). Think about it, some people do overkill by changing their engine oil every 3,000 miles, but they never even think about changing the automatic transmission fluid. Yet the automatic transmission gets alot of use and has alot of moving parts. It's the second most costly thing on the car to replace next to the engine. My parents cars never changed their transmission fluids except every 100,00 miles or so. And the transmissions usually died after 125,000 miles or so. Imagine if people only changed their engine oil every 100,00 miles- I don't think engines would last that long with dirty oil. My car only has 33,000 miles. I'm planning on researching who does the best job, what's the best technique, and have it done, or do it myself, before 50,000 miles at least. I know there is alot of BS and snake oil involved in the mainanence business, often on customers who don't have a clue about cars. Some people think transmission flushes are also a waste of money, likewise. |
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#2
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Magnulus wrote: > What do you think of transmission flushes or changing transmission fluid > more often than specified in owners masuals (usually 100,00 miles or never). > Think about it, some people do overkill by changing their engine oil every > 3,000 miles, but they never even think about changing the automatic > transmission fluid. Yet the automatic transmission gets alot of use and has > alot of moving parts. It's the second most costly thing on the car to > replace next to the engine. > > My parents cars never changed their transmission fluids except every > 100,00 miles or so. And the transmissions usually died after 125,000 miles > or so. Imagine if people only changed their engine oil every 100,00 miles- > I don't think engines would last that long with dirty oil. > > My car only has 33,000 miles. I'm planning on researching who does the > best job, what's the best technique, and have it done, or do it myself, > before 50,000 miles at least. > > I know there is alot of BS and snake oil involved in the mainanence > business, often on customers who don't have a clue about cars. Some people > think transmission flushes are also a waste of money, likewise. Engines suck in dirty air, transmissions don't. So it's unfair to compare the two. I've been thinking of changing the fluid and filter in my AT but it's a messy job. Very few car makers put a drain plug on the tranny so you have to take off the pan. I guess they figure you don't need to change the fluid very often and if we put install a drain plug, it will leak. |
#3
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"Laura Bush murdered her boy friend" > wrote in message oups.com... > Engines suck in dirty air, transmissions don't. So it's unfair to > compare the two. I've been thinking of changing the fluid and filter in > my AT but it's a messy job. Very few car makers put a drain plug on > the tranny so you have to take off the pan. I guess they figure you > don't need to change the fluid very often and if we put install a drain > plug, it will leak. > If you do engine oil tests, you can see wear metals building up in the oil. That's pretty normal to have a small amount building up. But eventually the oil cannot really hold any more, and then it's time to change the oil, otherwise the wear metals start depositing on something inside the engine and you'll get alot more wear and a failure. With a transmission, you are going to get wear metals, too. Maybe not as many, but they'll still be there. Any oil, engine or ATF, is also going to eventually break down, even if it's synthetic. The additives, if any, will probably break down first. This broken down oil will no longer have the viscosity that the moving parts needs. Automatic transmissions can also undergo alot of heat, and this will heat up the oil, especially in the torque converter. Here's the way I see it. Most automatic transmissions fail long after the warranty on the car has ended, about the time most sheeple are expected back at the dealer for a new car. So why would the manufacturer care if you change your automatic transmission fluid as often as it should? Having at automatic transmission fail at 125,000 miles is not going to be as big a mark against a brand's reputation for reliability. OTOH, having a problem like an electrical window problem is going to mark off alot more points with the so-called experts like Consumer Reports, even though the electric window failing is far, far more trivial. |
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