I'm looking into replacing the power steering fluid in my 1998 Volvo 945 Turbo with Pentosin CHF 11S. Mainly because of the improved cold flow characteristics since I live above the arctic circle and temps regularly drop below -30C (-22F) during wintertime. I'm currently running Mobil 1 Synthetic ATF and it did improve the steering assist on really cold mornings compared to the dino ATF that I put in it before, but I think CHF could potentially improve it further.
What I'm wondering is if there is any reason as to why I should avoid doing this? Its the original steering rack and pump at 350k km (220k miles) and everything is nice and dry (as in no leaks) and works fine beyond the reduced power assist on arctic mornings, so if there is any risk of causing problems I'll probably just be happy with the Mobil 1 ATF as it is.
Owners manual just states "ATF" for the power steering and doesnt call for any particular specification beyond that. I'm mainly worried about seal compatibility and I find conflicting information on the internet if it is a good idea to make the swap from ATF to CHF so I turn now to you guys!
Thanks. Happy to have joined this forum today, seems like a nice community.
What I'm wondering is if there is any reason as to why I should avoid doing this? Its the original steering rack and pump at 350k km (220k miles) and everything is nice and dry (as in no leaks) and works fine beyond the reduced power assist on arctic mornings, so if there is any risk of causing problems I'll probably just be happy with the Mobil 1 ATF as it is.
Owners manual just states "ATF" for the power steering and doesnt call for any particular specification beyond that. I'm mainly worried about seal compatibility and I find conflicting information on the internet if it is a good idea to make the swap from ATF to CHF so I turn now to you guys!
Thanks. Happy to have joined this forum today, seems like a nice community.