" I have not seen an oil that is not a fluid " no disagreement. just wondering why they use the word fluid instead of oil
"Where an oil gets thick enough to be called a grease I have no idea, or is there something in grease that defines it as a grease"
again, no disagreement with that. but this does not affect anything we are discussing here.
" Item 4 says ‘rear axle fluid’ so it is an oil. " agree. again, my point is: why they use the word "fluid" instead of "oil". just makes things obscure.
"Oils and greases are lubricants, greases are not used in any of the four components listed. " again, agree. but this has nothing to do with the discussion.
i hope my comments are not considered as arguing with any of you. again, am just trying to understand what is all this about.
i think that 1 of the fundamental points is to know when the right SAE applies, as is critical for learning which is the right product to use.

 

I would not say that -> I would not follow your recomend haha.

Here I post the pics from the Mercedes Benz official software for SLK320 and similar.
In my case, my manual gearbox, and I am quite sure is for all Crossfire sold in the world, it comes with a ref. in the Gearbox wich is 716.667.

As you can see, for 716.6, the line recommends 75w85, 235.10.



So, for 716.667 Gearbox, the oil is 1.5 Liters of BB00_40-P-0235-10A.


MB 235.10 manual transmission oil A 001 989 84 03Daimler AG, Stuttgart/GermanyGear Oil
MB 317 Exxon Mobil Corporation, Houston, Texas/USAPage Daimler bb00.40-p-0235-10a, Gear oils




Now, let´s see the rear diff:

1.1 LITERS of BB00.40-P-0235-07A

Recommended oils:
Product name Customer, town/country
MB 235.7/ 235.74 FE hypoid gear oil A 001 989 33 03 Daimler AG, Stuttgart/Germany
Fuchs TITAN SINTOPOID FE 75W-85 Fuchs Petrolub AG, Mannheim, Germany
Mobilube FE 75W-85 Exxon Mobil Corporation, Houston, Texas/USA
Mobilube FE Plus NG 75W-85 Exxon Mobil Corporation, Fairfax, Virginia, USA

 

i cant see clearly what you mean. pics show part of a sheet, not the whole.
but, above all, do you trust a chrysler dealer in spain above the instructions in the manual?
for what i read, at least in north america, chrysler dealers are not trustworthy at all.

 

For what it worth: Changed my manual 6spd fluid at 37k 2 months ago i used Redline fluid. My old fluid was not really dirty when I emptied it and I haven't noticed any better shifting also replaced clutch fluid

 

Yea, I changed my manual fluid in the Graphite Roadster around 90,000 miles. Didn't look bad, but Mobile 1 5W20 sure made it shift smoother.
I also did differential fluid, oddly, it was black as death and didnt smell much better than death.

With the SE, it had only around 35,000 miles on it, neither fluid looked bad.

 

.


I once rented a car from 'Hertz' in TX while visiting. After I got the car off the rental lot, I stopped and checked the engine oil (and lights/horn/fluids under hood that were safe to check). I found the engine oil black as tar and it sure wasn't very free-flowing. I vowed right there and then to NEVER buy a car that was listed as once being a rental. SCARY, it was. very scary.


.

 

[QUOTE=matabufalez;942546]Sae for motor oil is different than transmission oils.
As you can see on this pic, motor oil and gears oil is not the same SAE scale
https://syntheticwarehouse.net/wp-co...ositychart.jpg

could you please elaborate on this issue of more than 1 SAE specifications?
any link, input?
thanks

 

It is clear as mud.

Engine Oils are defined under SAEJ300:
https://en.wikipedia.org/wiki/SAE_J300

Gear Oils are defined under SAEJ306:
https://en.wikipedia.org/wiki/SAE_J306

 

matawhatever: where you got this chart?: https://syntheticwarehouse.net/wp-co...ositychart.jpg
thanks

 

thank you sir.
i see....as you said.
what i would like to understand is, do we really have to use those standards to decide what oil we use in the gear box (transmission)? and we use the term to include the differential too?
i mean, the gear oils of SAE J306?
this does NOT match with the data for gear box (transmission) in the car manual, which to me, is what we have to use instead of whatever any1 brings.
in the manual, this is what we are told to use in parts other than the engine:
2-automatic transmission: only use ATF approved to MB 236.10, MB 236.12
3-manual transmission fluid: only use fluid approved to MB 236.2. SAE 5W-20 engine oil, meeting API SL or GF-3
4-rear axle fluid: only synthetic SAE 75W85 axle lubricant that meets MB 231.1
notice: all say "only"
these specifications are for oils of multiple numbers (like 75W85), and the SAE J306 specs are for single number, so i think if only for this, it does not match.
but mainly, these SAE J306 specs are not the same as those mentioned in the manual.
would any1 trade the specs of the manual for anything else?

 

for the quest started we have this from the manual: 3-manual transmission fluid: only use fluid approved to MB 236.2. SAE 5W-20 engine oil,
we are lucky: it tells exactly what oil: SAE 5W20 engine oil. great! mission accomplished.
but somehow we got more data that applies to the rear axle (differential), from the same manual, and tells exactly which oil to use:
4-rear axle fluid: only synthetic SAE 75W85 axle lubricant that meets MB 231.1
for the automatic transmission, we are not so lucky. it does not tell exactly what to use right at the manual:
2-automatic transmission: only use ATF approved to MB 236.10, MB 236.12
here it shows these products to choose: https://bevo.mercedes-benz.com/bevol...236.10_en.html
the good thing of this is that the manual tells us the specification to use. then is up to us to choose which brand that matches.
and all of these are synthetic.

 

THAT chart explains it all!
That is the "secret decoder ring" for comparing gear oil to motor oil, in so far as viscosity is concerned.
(There are major differences in gear oil vs. engine oil apart from viscosity.)

Phil, at the bottom of the chart, the source is listed.

 

terrific. thank you very much. (didnt read the fine print)

 

trying to get mb 236.12 oil for automatic transmission in canada
any source of the oil advised here in the gray wild north?
thanks
am shocked to see that so many products, including ads from manufacturers, dont tell the figure of viscosity, neither if synthetic or not.

 

markup-it is a free world!
even worse, the markup is horrifying, to say the least. there is no price set by the manufacturers or distributors, and also the specific brand/product that we search is not available in many places. and shipping is another thing where sellers do as they want. and many dont ship to the grey wild north.
and still our car manages to survive all these situations where owners decide to use whatever and the car still lasts and lasts for countless miles/kilometres!
folks, we are fortunate to own such a fantastic car.
enjoy it.

 

Few months ago I have changed oil in manual transmission and rear axle. I used original Mercedes-Benz transmission oil #MB A001989840309 (see photo) which meets MB 235.10. And Motul Gear 300 75W90 oil in rear axle. I do not know what kind of oil was used by previous Owner of my XF but after change the oil gear shifting is far smooth and quieter. I observed that gear shifting is better with warmer transmission than shortly after start engine (especially in cold days).

 

How much was the prank?
When i went to the dealer, it was about 40$ per liter...

 

thank you for telling us. i will change mine soon. my car has some 65000 miles and dont know if it has been changed. will tell what i find.

 

getting back to the sae chart https://syntheticwarehouse.net/wp-co...ositychart.jpg
for what i see, this is an official document. but i wonder why it does not state the specific sae for each product.
it was until pizzaguy brought the data that i learned there is more than 1 sae specification. thanks, pizzaguy!
and this specific number of each type should be printed at the chart,as it is crucial.
so 1 group is saej300 and the other saej306.

 

great input. thanks. seems to me that the relevant point is that if we use 75w85 or 75w90-whatever we can get-for the manual transmission we have a winner.
now, about which brand, is up to each 1 to choose, depending of our experience or source.