Cabriolet top fluid

[huesey1974]

Hi,
My 99 cab top fluid is low and the current fluid is orange, Does anyone know if pentosin CHF11S is suitable to mix, Made by Comma and is green in colour.
thanks

[JFP in PA]

Hi,

My 99 cab top fluid is low and the current fluid is orange, Does anyone know if pentosin CHF11S is suitable to mix, Made by Comma and is green in colour.

thanks

 

The oil speced for the top is Porsche part # 000-043-204-89. Pentosin CHF11S is power steering fluid.

[huesey1974]

Hi,

Thanks for your reply, It is power steering fluid but is a synthetic hydraulic fluid used in different applications including hydraulics for convertible roofs, I was wondering if it is ok to use/mix with the original fluid used back in 99.

Cheers

[JFP in PA]

Hi,

Thanks for your reply, It is power steering fluid but is a synthetic hydraulic fluid used in different applications including hydraulics for convertible roofs, I was wondering if it is ok to use/mix with the original fluid used back in 99.

Cheers

 

If power steering fluid was OK, Porsche would have used it, but they didn't and chose to use something specifically for the top system.  A 250ml container retails for around $50.

[huesey1974]

Hi,

When I punch the parts number you gave into ebay.uk up pops 2 different types, One from Germany with that number and it says Porsche approved Pentosin CHF11s and the other is Porsche specific fluid only in the U.S. Do you know the spec of this Porsche fluid? Cant seem to find any info on it.

http://www.ebay.co.uk/itm/Porsche-911-Convertible-Top-Hydraulic-Pump-Fluid-250-ml-NEW-NS-/151512710209?pt=Motors_Car_Truck_Parts_Accessories&hash=item2346dc7c41

 

http://www.ebay.co.uk/itm/PENTOSIN-Hydraulikol-Getriebeol-Servool-CHF-11S-1-Liter-/181528587432?pt=Autopflege_Wartung&hash=item2a43f26ca8

[JFP in PA]

Hi,

When I punch the parts number you gave into ebay.uk up pops 2 different types, One from Germany with that number and it says Porsche approved Pentosin CHF11s and the other is Porsche specific fluid only in the U.S. Do you know the spec of this Porsche fluid? Cant seem to find any info on it.

http://www.ebay.co.uk/itm/Porsche-911-Convertible-Top-Hydraulic-Pump-Fluid-250-ml-NEW-NS-/151512710209?pt=Motors_Car_Truck_Parts_Accessories&hash=item2346dc7c41

 

http://www.ebay.co.uk/itm/PENTOSIN-Hydraulikol-Getriebeol-Servool-CHF-11S-1-Liter-/181528587432?pt=Autopflege_Wartung&hash=item2a43f26ca8

 

Not really, in the shop we buy it for stock and use it exclusively on customer's cars.  I have never seen anything that says the Pentosin product is acceptable for this application, including in the factory service manuals.

 

 

I know that Porsche uses the Pentosin product in their steering systems, but not the tops.

[huesey1974]

Hi,

That's great, I appreciate your help. Im going to give the local centre a call and see what they supply over here.

Cheers

[01slvr996]

Just my .02 my top pump was running low, I bought and refilled it with Pentosin  CHF 11S, that was 2 years ago, system runs perfect and I've never had any issues; I also havn't had to add any since I topped it off.

[huesey1974]

Just my .02 my top pump was running low, I bought and refilled it with Pentosin  CHF 11S, that was 2 years ago, system runs perfect and I've never had any issues; I also havn't had to add any since I topped it off.

Hi,

A few members of the UK forums have done the same with no issues, I just wonder what the specs are for the Porsche specific fluid. I called the OPC and they said they would call back but nothing yet. I have used Pentosin in all my previous cars hydraulic systems with no issues.

Thanks for you input.

[Richard Hamilton]

Is this any help?: http://www.renntech.org/forums/topic/5366-hydraulic-oil-for-convertible-top-motor/

[huesey1974]

Hi,

So after reading through your link and also the other link on that it seems the pentosin is suitable, and even one guy was told by the dealer that's what they use. Interesting, Anyway im going to try the pentosin as I have a bottle.

Thanks

[G B]

I confirmed by using, as well as a reputable Porsche indie, the Pentosin CHF 11S works well without issue.  Also Pentosin CHF 202 works well if you cant find the 11S.  A friend whose had his 911 cab much longer than I uses John Deere trans/hydraulic fluid and it works well.  

[JFP in PA]

2 minutes ago, G B said:

I confirmed by using, as well as a reputable Porsche indie, the Pentosin CHF 11S works well without issue.  Also Pentosin CHF 202 works well if you cant find the 11S.  A friend whose had his 911 cab much longer than I uses John Deere trans/hydraulic fluid and it works well.  

Welcome to RennTech 

Amazon carries CHF11S in stock.