Question for all the clean transmission folks.

1. Is the XF tranny the zf 6HP26. 100% SURE?
2. I recall ATF Pentosin was a cheap alternate replacement to Esso LT 71141. Esso is the real stuff put into the ZF trannies at the plant. This is critical.
3. I am looking for a JTIS for XF if I can get one anybody want to share a copy to soften end price?

 

Regardless of where this thread goes this was very funny

 

ZF 6HP26 transmission - Wikipedia, the free encyclopedia

One of the most impressive things about this transmission is that it hardly uses the torque converter at all. In second gear or higher the lock up clutch locks the torque converter out.

The layout and fill requirements for this transmission provide strong evidence that ZF intended it to be out of the car when being filled.

The trade off is service life between rebuilds versus the costs and risks of contamination from attempts to replace the fluid.

Synthetic lubricants have an indefinite service life absent contamination. Even in the engine they last a lot longer than current change intervals provide for.

So, unless you haul a heavy trailer frequently or drive constantly at speeds high enough to overheat the fluid, you are wasting your money changing the transmission oil on your ZF.

 

1. Synthetics are amazing. I change my XJ8 engine oil once a year and when I do I feel guilt because the oil is still cristal clear and clean.

2. High speed driving, trailer hauling require oil change but also city stop and go traffic! this seems to cover all driving styles.,

 

I guess one advantage of not bothering to change the transmission fluid is that at least you don't need a parachute when the 'fan' stops.

For me, I'd rather spend $150 - $200 every couple of years, than risk forking out $5k or thereabouts because some *&^$^&*&O(^% insisted & convinced me that changing the fluid was un-necessary.

Languid

 

Languid, previously you mentioned that there are two ports on the side of the transmission and to fill to the bottom of the upper port. When I watch the video I posted the link to above and on the instructions posted by another do it yourselfer they both seem to be filling thru the lower port and running the engine to add more fluid after the pan is full. Are you sure there are upper and lower ports?

I am going to change my fluid for sure and will most likely use the D6 ATF from Red Line as it is a full synthetic that they claim meets the requirements for the 6HP26 transmission. I have used Red Line products in almost every vehicle I have owned and never had an issue and I have owned 50 cars/trucks/suv's and 5 motorcycles over the years, many of which friends and family are still driving!

 

If you take a look in the S and XK forums you will find plenty of info, videos & pictures on changing ZF fluid.
Plenty of fluid discussion too, why don't you want to use ZF fluid?

 

Thanks, will check those forums out. The factory ZF fill is partial synthetic, would their bottled fluid not be as well? I have had no issues with Red Line products and at $12/quart for full synthetic it sure beats $30/quart for ZF labeled fluid.

 

I do wonder, however, if ZF specs a partial synthetic for a reason. Friction modification in an automatic transmission is a tricky art. I'm leaning more and more towards Jagular's suggestion to leave things alone. At least I don't have to confront this issue for some time.

 

Here is the thread that Norri mentioned.

https://www.jaguarforums.com/forum/s...ics-faq-30991/

I changed the fluid out in 2 different ZF6HP26s and it really is not that bad of a job. I followed the above link.

Here is a link for a complete kit that I used twice:
Oil change kit for 6HP26/28/32

 

Great information, thanks!

Regarding the fluid, I see that Red Line now actually specifies D6 ATF for the 6HP26 transmission, I have read here people have used Red Lines D4 ATF.

 

ZF does not mention stop and go driving as severe conditions. Only elevated transmission oil temperatures resulting from high speeds, aggressive driving or trailer hauling and even then specifies a change interval of 8 years or up to 120,000 km.

So one oil change in the life of the car and only if severe driving conditions are the norm.

Those are the facts fom the manufacturer.

 

09XFSUPER,

I'll check with my partner on Tuesday when business opens again. My Rangie has an HP24 which definitely has two plugs, but I could be wrong in assuming that the 26 has the same. Since 'Sealed for Life' is a subjective point of view dependant upon the opinion of the manufacturer as to how long he wants the vehicle to last -v- what you or I expect the lifetime to reasonably be (I think it was Doug who coined the term "sealed for death" which is remarkably appropriate), it may well be that the drain plug has been deleted (could well save them 15 or 20 cents at manufacture, perhaps even more). You & I, we are just the poor mugs who buy the products. The manufacturers' are trying to get us to believe that there product is best because.... the dealers' are doing their damndest to extract every cent they can for the service & repairs the manufacturers' tell (through the dealers) that we won't need... and the new car buyers don't give a damn because it won't be their problem: someone else will own the car by then. What a wonderful world we are passing on to our kids!! Thank god there are people like you and I who have some consideration for the future.

cheers,

Languid

 

Personally, I'd just do what the manufacturer says and leave it alone since it's non-servicable as opposed to trying to do it myself and messing up the transmission.

Lots of cars nowdays have non-servicable transmissions. It's not a big deal.

 

I finally found chaeoer alrernative. Where n what? Hellof lot of research! Colvin Auto parts
merrick ny 516 379 2420, ask for Dawayne, lauren, Datyl, Richie, or Pat! they have access to it all, n two products in stock at most times... Pentosssen (sumn like that ) 29.99 a bottle, or what jaguar, bmw, mercedes use, Mineral oil as in the shell m1375.4 ( for zf 6hp26 tranny), n finally the solution u r all looking for, trust me... drum roll please, n yes they have this too...

The wolf! Wolf's head trans fluid made USE, for zf trannies.... $7.00 a bottle! great! hope this has helped you!!!

 

I have been lurking around these parts because I have been considering a new XF for a while.

For those who do not believe in changing the transmission fluid a quick look/search at the 2004-2009 XJ8 and S type forums should be enough to make you a believer. Those cars also came with "sealed for life transmissions" and higher mileage examples tend to suffer from a)failed transmissions or b)poor shifting transmissions where a late fluid change sometimes helps and sometimes does not

I know that a lot of XF owners are new to the marque, but any seasoned Jaguar owner knows that a lot of the "factory recommendations" can be a collection of very poor advise, unless you trade cars at 80K miles.

 

correction, the Pentossen is 19.99, n the shell m1375.4 is 10.00 a liter, at Colvin, n yes the Wolf is nly 7.00 works perfectly fine....
Colvin auto parts
Babylon tpke
merrick, n.y.
516 379 2420
dwayne
lauren
daryl
richie
Pat

 

I've heard of some people doing partial fluid changes over several months if the first change was past 50k miles.....again, this could be old age wisdom (am I getting old?). The philosophy was not to shock the system i.e. go from eating burgers and fries blood cholesterol to a fish and veggies cholesterol overnight.

I usually change mine at 50k miles.

 

Its always a paritial fill because there is a lot of fluid in the converter that you won't change unless you use a vacuum system. So just change it all. I am, as previously mentioned a seasoned jag owner and if there is one thing I highly recommend is to change your tranny oil.

 

Please follow the advice given by joycesjag. We have beaten this subject into the ground on the S-Type forum. Our cars are older and have a bunch more miles and more real life service experience.

Our cars (S Type) have the exact same ZF transmission. The proper ZF Lifeguard6 fluid has come down in price a bunch here in the US. It’s now about $17/liter. Still high but not like it was. You can use other brands without problems. Do a little research and they can be found.

Again use the supplier mentioned. Claus is a ZF factory trained tech who has his own shop. He has put together a great oil change "kit". The Jaguar version of the ZF transmission has an integrated plastic pan and filter. So they must be changed as a unit. Please replace the "sleeve" too! It's only $15. Jaguar may have fixed this by now but just about all of them will leak at this sleeve with time.

http://www.thectsc.com/index.php?p=product&id=186&parent=8

If you think it's sealed for life??

Keep living the fantasy my friend!!
.
.
.