Maximus Gladius
Well-Known Member
- First Name
- Kevin
- Joined
- Jan 30, 2021
- Threads
- 41
- Messages
- 1,741
- Reaction score
- 2,045
- Location
- Calgary, AB, Canada
- Vehicle(s)
- 2021 Gladiator Rubicon
- Occupation
- Construction, Gold Mining, Surface Engineer
- Thread starter
- #1
Anybody heard of having to reflash your transmission after doing an oil change or flush on the newer Chrysler ZF transmissions?? -
My short story: My gladiator Rubi has 6500kms and I’ve come to learn from “ZF Service Information - Oil Change Kit for ZF 8HP Automatic Transmission”
- “ZF automatic transmissions are filled with specifically developed SEMI-SYNTHETIC oils. “
So that means that ZF Life Guard 8 is not full synthetic. Now then, short of buying a $40 bottle of it and running it to the lab to confirm, OR drawing a sample of it from the transmission and take that to the lab, I’m going with what ZF has published on their product sheet....for now.
This is not a plug for Amsoil but I know their Signature Series ATF is 100% synthetic so I enquired with my Amsoil distributor, as to if their ATF is compatible with this ZF 850re transmission? and yes it is. The concern back from Amsoil’s tech department was that if a flush or oil change is done, a reflash is necessary to reset the transmission to “relearn” the new oil”. I’ve never heard of this.
Amsoil stated a case they became involved with where a Dodge Charger was taken to a dealership and the work order had them swap out the Life Guard oil for Amsoil to which the service department did. A week later, the transmission suffered a catastrophic failure and Chrysler blamed Amsoil. Amsoil fought back and supported the customer and their product and Chrysler determined the tech that did the oil change forgot to reflash the tranny. Chrysler warrantied the transmission and Amsoil put up a bulletin stating it necessary to reflash the tranny. The bulletin has since been taken down. I will post a YouTube concerning the data pulled on the ZF’s oil.
check out: 13:21 and 18:17 but listen to the whole vid.
I’m not wanting to start any fights on what oil is better or I shouldn’t be touching this Life time oil good for the life of the tranny... I just want to stick to the question at hand plz.
My short story: My gladiator Rubi has 6500kms and I’ve come to learn from “ZF Service Information - Oil Change Kit for ZF 8HP Automatic Transmission”
- “ZF automatic transmissions are filled with specifically developed SEMI-SYNTHETIC oils. “
So that means that ZF Life Guard 8 is not full synthetic. Now then, short of buying a $40 bottle of it and running it to the lab to confirm, OR drawing a sample of it from the transmission and take that to the lab, I’m going with what ZF has published on their product sheet....for now.
This is not a plug for Amsoil but I know their Signature Series ATF is 100% synthetic so I enquired with my Amsoil distributor, as to if their ATF is compatible with this ZF 850re transmission? and yes it is. The concern back from Amsoil’s tech department was that if a flush or oil change is done, a reflash is necessary to reset the transmission to “relearn” the new oil”. I’ve never heard of this.
Amsoil stated a case they became involved with where a Dodge Charger was taken to a dealership and the work order had them swap out the Life Guard oil for Amsoil to which the service department did. A week later, the transmission suffered a catastrophic failure and Chrysler blamed Amsoil. Amsoil fought back and supported the customer and their product and Chrysler determined the tech that did the oil change forgot to reflash the tranny. Chrysler warrantied the transmission and Amsoil put up a bulletin stating it necessary to reflash the tranny. The bulletin has since been taken down. I will post a YouTube concerning the data pulled on the ZF’s oil.
check out: 13:21 and 18:17 but listen to the whole vid.
I’m not wanting to start any fights on what oil is better or I shouldn’t be touching this Life time oil good for the life of the tranny... I just want to stick to the question at hand plz.
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