4L60E "Shouldn`t change the transmission fluid"???

knucklebusted · Feb 18, 2021

Schurkey said: ↑

Yes. Because the fluid is supposed to last the "Lifetime" of the transmission.

But what is the "lifetime" of the trans? I bet they're expecting about 150K, just like ZF.

The whole problem--and therefore my concern--is that these folks are essentially using deceptive advertising, because most people are going to think "Lifetime" is the same as "forever"; when the truth is that the manufacturers have a definite mileage in mind--but they're not willing to tell the consumer what that is. Publicizing the expected lifetime of the trans would defeat their goal--hoping to confuse the consumer into thinking "lifetime" means "forever".

So, for example, a ZF trans goes 160K, it's beyond it's expected life, and to them you're on borrowed time. That fluid is DONE, but the consumer has been told it doesn't need to be changed "for the life of the trans".

The same deal in the '60s; except the mileage limits were different (lower). "Lifetime" fluid is not really "lifetime" fluid--it's the engineers and marketing people finding another way to mislead the consumer.
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If I have the car at 100K miles, I'll do a service on the transmission. Until then, I'll not worry about it. I changed the CVT fluid and rear diff in the wife's Honda at 30K as recommended. It took 5 years to hit 30K. We don't drive near as much now that a) our daughter is the same state and b) COVID.

Schurkey · Feb 18, 2021

knucklebusted said: ↑

If I have the car at 100K miles, I'll do a service on the transmission.
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Seems reasonable to me.

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4L60E "Shouldn`t change the transmission fluid"???

knucklebusted Well-Known Member

Schurkey Silver Level contributor

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