Comparison of hydraulic fluid that's used iny Alfa Romeo 156 selespeed

[XJR_Boy]

Hi all. I've had to use something else in my selespeed the top one is what I've used bottom is factory spec am I ok doing this


Colour Green
Density at 15°C, kg/L 0.860
Viscosity, Kinematic, cSt
at 40°C 17.8
at 100°C 6.1
Viscosity Index 342
Flashpoint 175 0C

Colour R -- -- L 3
DENSITY AT 15°C g/cm³ 0,830
VISCOSITY @ -40°C cSt 1900
VISCOSITY AT 100°C cSt 6,8
VISCOSITY INDEX -- 270
FLASH POINT Cl. O. C. °C 164
POUR POINT °C -51

 

[Dutchy491]

Are you having issues with the new fluid? Because you should’ve asked before you switched…

 

[XJR_Boy]

I asked a Local Alfa guy he said he's been using LDS. I did a stupid thing the reservoir for this unit has a picture on it that looks like a hatchback. I inadvertently thought it was the reservoir for the rear window washer and filled it with water. I had 3 bottles of the green LDS so flushed it with 3 liters of green LDS fluid and still can't get the fluid clear. It's still milky and thought do I buy more LDS or start flushing it again with the genuine fluid

 

[Dutchy491]

Well that’s some important information that you left out in your initial post. My suggestion?…..take it in for a full flush/service at a shop with techs that are more qualified than you

 

[kschachn]

I asked a Local Alfa guy he said he's been using LDS. I did a stupid thing the reservoir for this unit has a picture on it that looks like a hatchback. I inadvertently thought it was the reservoir for the rear window washer and filled it with water. I had 3 bottles of the green LDS so flushed it with 3 liters of green LDS fluid and still can't get the fluid clear. It's still milky and thought do I buy more LDS or start flushing it again with the genuine fluid

How are you flushing it?

 

[XJR_Boy]

I had 4 litres of LDS. I used a syringe to empty the resvoir then Cotton sheets cut up to put in the reservoir to dry it out then filled it with new fluid drove it around for a couple days then did the same thing untill I've used all 4 litres of LDS the reservoir only holds 500 ml

 

[XJR_Boy]

I'm wondering if I can use a aw rated hydraulic oil. I can get my hands on some Castrol Hyspin aw 68 the PETRONAS tutela cs75w they recommend is really hard to find

 

[ripcord]

I'm not 100% clear on what happened? Did you put water in the clutch master cylinder? If yes, there may be a bleeder screw on the slave cylinder that you can open and flush more thoroughly. A full flush is better than a bunch of partial changes. As for the Castrol fluid, I have no idea if it is similar to the OEM fluid, but can say that AW68 is about a 80w fluid where as AW46 and AW32 weights falls in the 75w gear oil viscosity range. Compare the ISO column to the SAE Gear column in the diagram.

 

[Jetronic]

Hi all. I've had to use something else in my selespeed the top one is what I've used bottom is factory spec am I ok doing this


Colour Green
Density at 15°C, kg/L 0.860
Viscosity, Kinematic, cSt
at 40°C 17.8
at 100°C 6.1
Viscosity Index 342
Flashpoint 175 0C

Colour R -- -- L 3
DENSITY AT 15°C g/cm³ 0,830
VISCOSITY @ -40°C cSt 1900
VISCOSITY AT 100°C cSt 6,8
VISCOSITY INDEX -- 270
FLASH POINT Cl. O. C. °C 164
POUR POINT °C -51

I use Total power steering fluid for this application. Fluide DA it's called

https://lubricants.catalog.totalenergies.com/catalog-sg/en_SG/m8b_fluide-da

Total fluide LDS is the same thing with a different label, so get what's easiest/cheapest to get.

MPM sells the same fluid under their own branding, I don't know if they have a presence in Australia though.

it's PAO synthetic with very high VI. Thinner when cold is your friend here.

The top fluid you have listed is going to work, but the brookfield viscosity would be helpful, if the fluid is too viscous when cold (ambient temperatures) the shifts will be less smooth. the fluide DA thickens less than the original when cold, and I suspect the green fluid you used thickens even more.