Type "F" ATF is specified for the power steering on my 1992 Volvo 740, which I've been using. I don't suppose Dexron would do any harm in a pinch if I didn't have any Type "F" handy. Does anyone here know, or could guess, why Volvo would have specified Type "F"? All I know about it is that it's supposed to give firmer shifts if used in place of Dexron in an automatic transmission.
Type "F" vs. Dexron for power steering
- Thread starter Oldyellr
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believe it or not, the dexron probably won't hurt anything.
Also, most people when it comes to power steering fluid.. get the stuff on the shelf that says: power steering fluid
without any concern for what it is or what it isn't.
Rarely have I seen any issues with the scrupulous mixing of power steering fluids.
I've been mixing Redline PS with AC Delco p/s via turkey baster in my Van. no issues.
p/s units I don't believe are as picky as say a tranny.
Also, most people when it comes to power steering fluid.. get the stuff on the shelf that says: power steering fluid
without any concern for what it is or what it isn't.
Rarely have I seen any issues with the scrupulous mixing of power steering fluids.
I've been mixing Redline PS with AC Delco p/s via turkey baster in my Van. no issues.
p/s units I don't believe are as picky as say a tranny.
Originally Posted By: EricF
p/s units I don't believe are as picky as say a tranny.
Tell that to Honda.
Oldyellr, a small amount of Dexron as a top-up prolly won't hurt a thing, but you are better off using the correct fluid. Type F is still available at most national chains (AZ, AAP, O'Reilly's, etc).
p/s units I don't believe are as picky as say a tranny.
Tell that to Honda.
Oldyellr, a small amount of Dexron as a top-up prolly won't hurt a thing, but you are better off using the correct fluid. Type F is still available at most national chains (AZ, AAP, O'Reilly's, etc).
hehe.. forgot to put the disclaimer: honda doesn't count!
MolaKule
Staff member
When discussing ATF's and PSF's you might want to read this thread as well:
https://bobistheoilguy.com/forums/threads/the-difference-between-atf-psf.152903/
The Type F ATF has no band and clutch friction modifiers as do the Dex/Mercon and DexVI fluids.
The racing Type F ATF I formulate uses a commercial additive and gives the following analysis:
Antioxidant - 450 ppm
Zinc - 430 ppm
Phosphorous - 520 ppm
Calcium 450 ppm.
https://bobistheoilguy.com/forums/threads/the-difference-between-atf-psf.152903/
The Type F ATF has no band and clutch friction modifiers as do the Dex/Mercon and DexVI fluids.
The racing Type F ATF I formulate uses a commercial additive and gives the following analysis:
Antioxidant - 450 ppm
Zinc - 430 ppm
Phosphorous - 520 ppm
Calcium 450 ppm.
The manual for my 87 RX-7 called for Type F or Dex II as PSF. Man, I didn't know what to do. I always thought PS=PSF. Took a few posts to clear that one up.
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