When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.
Joe8512,
DO NOT use Mercon LV in anything on your truck.
Not in the transmission, not in the transfer case.
Not in the power steering.
It will break things.
There was even a TSB out years ago about this.
Use the Valvoline referenced above only in the transfer case.
Also, if you only drove a few miles then the dipstick may not show low, it will be higher once the trans is up to full operating temp.
Add trans fluid only a little at a time.
LV flat out smells different. It is also a much darker red. My Escape with the 6F35 takes it.
EDIT: I also believe I have seen a video where FTM suggests using LV, and I disagree with that. My Buddy that owns the transmission shop will not use LV in any of the 4R70/75/AOD family.
Ford actually originally said LV was not to be used in transfer cases, then changed that stance earlier this year. I really don't give a $4it what they've changed, I'm not putting LV in my transfer case. I'll either use XL-12/Valvoline, or Mercon III. I actually just ordered some Mercon III for my Mustang via Amazon.
Like I said above.... I'm sticking with their original recommendation. But you can see below why it is so damn confusing. I thought they'd fixed their confusion by making a bottle that actually said "Transfer Case Fluid" on it, but it appears they've possibly pulled that off the market. Rock Auto
Like I said above.... I'm sticking with their original recommendation. But you can see below why it is so damn confusing. I thought they'd fixed their confusion by making a bottle that actually said "Transfer Case Fluid" on it, but it appears they've possibly pulled that off the market. Rock Auto
Yea, the few bottles of xl-12 I bought said transfer case fluid and xl-12 was on the back information panel. They were old, the paper on the bottle was starting to change color, but were sealed containers. This dealer was an hour away from me in gallipolis ohio, but i was traveling for work, so i stopped and grabbed them.
They said they had plenty and no one uses it, lol. I got them for cheap, should grab more.
Joe, a tip - make sure you take off the cross support just behind the transfer case. If you warm the truck and then drain, the old fluid will come out all over that bar and make a huge mess.
Last edited by mapleleaf1773; Dec 4, 2019 at 07:55 PM.
Yea, the few bottles of xl-12 I bought said transfer case fluid and xl-12 was on the back information panel. They were old, the paper on the bottle was starting to change color, but were sealed containers. This dealer was an hour away from me in gallipolis ohio, but i was traveling for work, so i stopped and grabbed them.
They said they had plenty and no one uses it, lol. I got them for cheap, should grab more.
Joe, a tip - make sure you take off the cross support just behind the transfer case. If you warm the truck and then drain, the old fluid will come out all over that bar and make a huge mess.
Sounds good.
It should make it easier getting the full plug out anyway. I half heartedly attempted with a long extension and could tell it is pretty seized
