Quote:
Originally Posted by Anthracite85
I have 180K on mine and have never messed with the sealed transmission based on feedback I received from others on this forum.
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Could be a huge gamble. There’s been exhaustive discussion here around how Toyota’s definition of “lifetime” differs greatly from an owner’s. (Well, any manufacturer, not just Toyota.) Scotty Kilmer
says so too.
It also strikes me as unlikely that any fluid, especially transmission fluid, can fulfill its purpose indefinitely.
And finally, some say manufacturers call fluids “lifetime” to avoid a per-vehicle fluid disposal fee that would otherwise be imposed on imported vehicles like the 4th Gen 4Runner.
Your truck, your call but something to think about.