Quote:
Originally Posted by oldskewel
On the DEXRON VI vs. III, I believe the low temp viscosity of the VI is lower, and you can pretty easily see/feel this when you pour it in. But the VI is more stable, retaining the viscosity both with temp increase and with wear. So as the fluid actually operates in your AT, at temp, and after a few k miles of use, the VI will have slightly higher viscosity, which is preferred.
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Yep, from what I've researched, Dex VI is a superior fluid in just about every way. With an older transmission, it makes sense to me that a slightly more viscous fluid with the quality of Dex VI might make sense. I've read where some have used Mobil1's synthetic ATF that is noticeably thicker with good success. It's expensive, though!
For now, the MaxLife stuff is working fine and it definitely made it shift faster/cleaner vs. the old OE stuff I pulled out at about 125K miles.
AM.