Power Steering Fluid Type?
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Power Steering Fluid Type?
The reservoir in my '95 302 powered E150 is a bit low. I might as well remove as much of the old fluid and replace with new. Per the owner's manual:
Use only power steering fluid that meets Ford's spec ESW-M2C33-F, such as Ford Premium Power Steering Fluid, E6AZ-19582-AA or an equivalent Type F ATF with a Ford registration number (an 8-digit number beginning with 2P printed on the fluid container)
I have a nearly full bottle of Mobil 1 synthetic ATF that is Dexron-III/Mercon rated and two quarts of Valvoline MaxLife High Mileage that has the same specs. Could I use either one of these or is Type F crucial? Also, is ATF hydroscopic like brake fluid? The Mobil 1 fluid is new but the bottle was opened a long time ago as I used it as top-off in another vehicle.
Use only power steering fluid that meets Ford's spec ESW-M2C33-F, such as Ford Premium Power Steering Fluid, E6AZ-19582-AA or an equivalent Type F ATF with a Ford registration number (an 8-digit number beginning with 2P printed on the fluid container)
I have a nearly full bottle of Mobil 1 synthetic ATF that is Dexron-III/Mercon rated and two quarts of Valvoline MaxLife High Mileage that has the same specs. Could I use either one of these or is Type F crucial? Also, is ATF hydroscopic like brake fluid? The Mobil 1 fluid is new but the bottle was opened a long time ago as I used it as top-off in another vehicle.
Logistics Pro
Joined: May 2017
Posts: 3,523
Likes: 483
From: Southern OH
Power steering pumps aren't that sensitive, all they are is a hydraulic pump, you could use just about any hydraulic fluid in them and they would work fine, as long as its the right viscosity. They don't have clutches in them like a transmission does that requires a certain type of fluid.
Fleet Owner
Joined: Aug 2010
Posts: 21,255
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From: Reynoldsburg, Ohio
Like many I use whatever ATF I have on hand, try to use something fresh or unopened though. I never leave caps off any fluid bottles but if the foil seal is broken over time moisture creeps in, AFT loving moisture and vice versus.
Its good to be concerned and ask if uncertain about something but in this case its not a super critical requirement.
Its good to be concerned and ask if uncertain about something but in this case its not a super critical requirement.
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