1.0 Power Steering Cooler Capacity and Weight & Oil Requirements
The added capacity of the cooler is:
This system MUST use high grade pure synthetic. Do not use ATF.
Did you know there are five grades of oil and high grade synthetic is water clear (sometimes companies add a color for marketing)?
Why the good stuff?
High grade synthetics offer a much higher temperature capacity without breaking down. Even more important is that it will maintain a core consistent viscosity at low temperatures so the steering will not become heavy and blow off the pressure relief valve to soon. This could cause a large reduction in power assist at very low temperature conditions (sub 10F).
It’s a 150% increase in capacity
Oil used should be to Chrysler minimum spec MS-11655
All oils that meet this spec may be used.
Common at parts stores
Part# Pentosin CHF 11S
Another commonly found oil
Part# Redline 30404