Wait, I’m trying to understand this… LMK if this is correct: you’re saying that you think a fluid with a slightly thicker viscosity but the correct additives will cause a problem.
But your point of reference is the OEM fluid, mixed nearly 50/50 with the Jack of all trades fluid, and then topped off with a friction modifier that’s unlicensed by anybody and most certainly results in an overall cocktail fluid that meets none of the OEM’s fluid recommendations?
It also seems like your trans is probably overfilled if you’re running a 65/55 mix
I never said that. I said I would not be comfortable running something 1cst or more thicker or thinner in a transmission. Something in the 5.7-6.3ish range, for me it's fine so long as it is "recommended" for Mercon LV application, or whatever LV fluid my vehicle happened to take. If you or others want to use LV fluid in your ULV transmission, knock yourself out.
If I had a 10R80, I'd run the ULV fluid, or equivalent like the HPL Teal or whatever fluid in the 4.x range that is out there. I haven't really looked as I don't own or service a trasmission that takes one of these fluids, but nothing popped out at me as being "ULV" when browsing the transmission fluid offerings at wally world.
Yes, you're correct, it's 55/45. 7.5 of 13.5 quarts, is Maxlife MV (5.9 CST)
To me, it's really troubling how the above makes sense... doing.
It's just the result of doing 1 drain and fill rather than 2 or 3 drain and fills. You're dropping out 7.5 of 13.5 quarts on a 2009-2010 6R80 every time you do one, the 2011+ is slightly revised, but maybe the same. Maybe BITOG would be happier if I had done 2 or 3 drain and fills so that it would be "mostly Maxlife MV" plus Lubeguard Platinum.
When I do another drain and fill in 10-15K, assuming I use Maxlife MV, I will drain out 7.5 quarts. Of the 6 quarts left in the transmission, 55%, or 3.3 quarts, will be Maxlife MV. If I add 7.5 quarts of fresh MV, then I will have 10.8 out of 13.5 quarts MV, or 80%.
If anyone from BITOG wants to Paypal or Venmo me whateve exhoribant cost is involved with going to a Valvoline Quick change for a full transmission flush with Maxlife MV, I'll be glad to find time to do it. But I really don't think it's necessary.
If I asked Valvoline customer service "Is there any risk on doing a drain and fill and mixing Maxilife MV with OEM fluid" I'd bet money they'd say no.
If I asked Lubeguard customer service if adding Platinum to a drain and fill that was only 55% full synthetic rather than 100% as per their charts, I doubt they'd have an issue with it, although in this case I'm not sure I'd bet money on it.
Overall, I'm not sure how this thread became about me. I'm using LV fluid in an LV application.