Here are my sequential transmission oil reports:
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34,462 miles: Our viscosity level was found to be 4.90 after this period of time. On it's own not looking too great. Iron levels were also really high making it appear that there is a lot of internal wear going on? On it's own this report was not making things look to good.
35,523 miles: I performed a single dump-n-fill which raised the level to 5.21. Using this report stand alone it appears that doing a single dump-n-fill is not very useful. Though, iron levels were reduced significantly, leading me to believe that most of that iron was just from initial breaking in?
40,500 miles: After performing two more dump-n-fills, (a total of three), the viscosity was raised substantially to 6.17. Taking this value stand alone it appears that doing multiple dump-n-fills was very beneficial. Also the iron levels reduced even further, making everything look pretty rosy.
52,000 miles: Here I performed an analysis on the fluid after 12,000 miles on the triple dump-n-fill and I was “disappointed” to find that the viscosity had already lowered itself back down to 5.21 within this very short time. Plus the iron level creeped up a bit.
What becomes obvious over time is that each of these reports standing alone are not very useful and really can lead to making false assumptions. But taken all together I believe I am seeing a story being written. After 35,000 miles our viscosity was down to 4.90, but then brought up to 5.21 after a single dump-n-fill, and then brought up to over 6 by completing a triple dump-n-fill. Looking good! But then look at what happens, after a very short time of around 10,000 miles the viscosity was right back down to around 5, not what I was expecting at all!
So far my take-away of this is that yes, doing multiple dump-n-fills significantly raises the fluids condition significantly initially, but with it rapidly returning back to around 5 in such a short period of time makes it appear that any “benefit” is very short lived. (A side note is that another analysis was done by another member using aftermarket AmsOil fluid, and his single report appears to show the same trend.)
With the current data, I believe that It is starting to appear that any woes owners are having with their 6-speed transmissions has little to do with the transmission fluid itself?
What I am waiting on now is when the Maintenance Minder prompts for another fluid change around 70,000 miles, what will the viscosity level be at that time?
If it is has dropped even lower, (significantly below 5), then continuing multiple dump-n-fills may prove to be beneficial. But if it comes back as remaining around 5, then maybe this is just where the 6-speed transmission is simply content and not actually the bad thing we have all been trying to make it out to be?
Anyways, in about 15,000 miles now, when the next transmission fluid change will be prompted, hopefully we can fill in a bit more of this puzzle. We'll also have had added approximately 6,000 miles of heavy towing when that time comes.
Bill
34,462 miles: Our viscosity level was found to be 4.90 after this period of time. On it's own not looking too great. Iron levels were also really high making it appear that there is a lot of internal wear going on? On it's own this report was not making things look to good.
35,523 miles: I performed a single dump-n-fill which raised the level to 5.21. Using this report stand alone it appears that doing a single dump-n-fill is not very useful. Though, iron levels were reduced significantly, leading me to believe that most of that iron was just from initial breaking in?
40,500 miles: After performing two more dump-n-fills, (a total of three), the viscosity was raised substantially to 6.17. Taking this value stand alone it appears that doing multiple dump-n-fills was very beneficial. Also the iron levels reduced even further, making everything look pretty rosy.
52,000 miles: Here I performed an analysis on the fluid after 12,000 miles on the triple dump-n-fill and I was “disappointed” to find that the viscosity had already lowered itself back down to 5.21 within this very short time. Plus the iron level creeped up a bit.
What becomes obvious over time is that each of these reports standing alone are not very useful and really can lead to making false assumptions. But taken all together I believe I am seeing a story being written. After 35,000 miles our viscosity was down to 4.90, but then brought up to 5.21 after a single dump-n-fill, and then brought up to over 6 by completing a triple dump-n-fill. Looking good! But then look at what happens, after a very short time of around 10,000 miles the viscosity was right back down to around 5, not what I was expecting at all!
So far my take-away of this is that yes, doing multiple dump-n-fills significantly raises the fluids condition significantly initially, but with it rapidly returning back to around 5 in such a short period of time makes it appear that any “benefit” is very short lived. (A side note is that another analysis was done by another member using aftermarket AmsOil fluid, and his single report appears to show the same trend.)
With the current data, I believe that It is starting to appear that any woes owners are having with their 6-speed transmissions has little to do with the transmission fluid itself?
What I am waiting on now is when the Maintenance Minder prompts for another fluid change around 70,000 miles, what will the viscosity level be at that time?
If it is has dropped even lower, (significantly below 5), then continuing multiple dump-n-fills may prove to be beneficial. But if it comes back as remaining around 5, then maybe this is just where the 6-speed transmission is simply content and not actually the bad thing we have all been trying to make it out to be?
Anyways, in about 15,000 miles now, when the next transmission fluid change will be prompted, hopefully we can fill in a bit more of this puzzle. We'll also have had added approximately 6,000 miles of heavy towing when that time comes.
Bill
