Just two days after posting our article on Preventing Winter Power Steering Fluid Problems, we were strolling through a hotel parking lot and observed what appears to be the aftermath of a blown power steering line.
What appears to be power steering fluid from a burst power steering system hose.
This mess certainly looks to be from a sudden and catastrophic evacuation of the power steering fluid from a car or truck. As we mentioned in the article, during spells of very cold weather, power steering fluid can congeal in the fluid cooler or within the system’s hoses. When the vehicle is started after a long, cold night, the power steering pump tries to circulate the fluid. As the system is blocked by frozen fluid, pressure builds until a power steering hose bursts. The power steering fluid then sprays all over the ground until the system is emptied. The red appearance of the fluid would suggest that this vehicle used automatic transmission fluid (ATF) in its power steering system (this is not uncommon).
Using a synthetic power steering fluid (as is suggested in our article) could have saved this person a lot of inconvenience and prevented an expensive repair bill. Changing your power steering system over to a synthetic fluid is easy, inexpensive and requires no special tools or skills. Again see our article at the link above for more information.
Cars and trucks tend not to be very happy when exceptionally cold whether hits. But major mechanical problems can arise that go far further than poor starting and dead batteries. Some vehicles are very prone to catastrophic power steering freeze-up. When this occurs, the power steering fluid freezes and congeals in the power steering pump and cooler. Upon start-up, the flow of fluid is blocked and the resulting pressure ruptures the steering fluid pressure line and the fluid is blasted all over the ground. This headache is not only messy; it results in a very expensive repair bill. Update: Here’s photographic evidence of the aftermath of frozen power steering fluid.
Certain vehicles seem to be more prone than others. These include several Dodge/Chrysler cars and vans and the Ford Escape. We heard from a Ford Escape owner that had this misfortune the last two winters in a row, with $600 repair bills each time.
A Simple Preventive Solution For Frozen Power Steering Fluid
The simplest, most effective way to prevent winter power steering system failure is to switch to synthetic fluid. As temperatures dip into the -30°C range, conventional power steering fluids become all but useless. At best, they flow poorly in winter and starve the power steering pump of lubrication at start-up. That growling noise you hear after a cold start is the power steering pump running dry. At worst, the power steering oil can be completely frozen and the result can be the fiasco described above.
Our synthetic power steering fluids flow below -50°C, so even in the -40s, your steering pump receives fast oil circulation and disasters like blown power steering hoses are averted.
For vehicles that have chronic power steering issues, a journeyman mechanic has told us that he will go so far as to reroute the steering hoses to by-pass the power steering cooler. This completely eliminates the cooler as a blockage point for frozen fluid. His contention is that unless a vehicle is performing heavy towing or hauling, the power steering cooler is not needed in the Northern US or Canada. While this may be an effective fix (not that we endorse it), the conversion to synthetic power steering fluid is likely a far less expensive (and less risky) solution.
What Is The Correct Fluid For My Power Steering System?
Some vehicles require a specific power steering fluid, while others require automatic transmission fluid. For instance, some Dodge vehicles suggest an transmission fluid with the Chrysler ATF+4 specification, while some Ford vehicles suggest a fluid with the MERCON V ATF spec. Either way, we should be able to offer a world-class synthetic option for your car or truck. The exception is Honda/Acura cars. These cars require a very unique steering fluid formula that is significantly different than most other brands on the road.
For vehicles that require a dedicated power steering fluid, we highly recommend AMSOIL Synthetic Multi-Vehicle Power Steering Fluid. This product meets the requirements for all but a handful of makes on the road. This product has a cold pour point of -51°C (-60°F), so it pumps easily during exceptionally cold starts.
For vehicles that require an automatic transmission fluid, we suggest our finest AMSOIL Signature Series Synthetic Multi-Vehicle ATF. It also meets a multitude of ATF specifications and it pours down to -53°C (-63°F). Minus 40°C outside? No problem!
Either of these oils will be compatible with the fluid that is currently in your power steering reservoir, regardless of whether it is synthetic or conventional.
If you have questions about choosing the correct fluid, see our product application tool or contact us using the form on your right. Your owner’s manual will also offer the correct specification for your vehicle.
More Benefits Of Synthetic Power Steering Fluid
Synthetic power steering fluid isn’t just beneficial in extreme cold. Conversely, it also offers consistent protection and will not thin out under extreme heat. Other benefits include:
Instant flow for fast steering pump protection
Lower friction for optimized efficiency and smooth steering
Long term conditioning of seals and hoses for leak prevention
Prevents the formation of deposits and varnish
Resistant to viscosity breakdown over long intervals
If you’re going through the trouble to change the fluid, it only takes a couple of bottles. Why not use an ultra-premium fluid?
How To Change Your Power Steering Fluid
Changing your power steering fluid is easy! The process requires no special tools or skills. In a previous post, we show you how to change your power steering fluid with a turkey baster! The cost is literally a couple of bottles of power steering fluid and a turkey baster.
Caution About Power Steering Stop Leak Additives in Winter
If you have minor power steering system fluid leaks, there are several “stop-leak” additives on the market that you can pour into the power steering system. While some of these products may (or may not) be effective, take special care if you live in a cold climate. Many of these products have a very, very thick viscosity (hello Lucas Oil brand), so the method of repair is basically to thicken the power steering fluid viscosity to a degree that it can’t leak out. We have seen where some of these additives are so thick that they won’t even pour out of the bottle at -10°C. So the use of this type of additive could greatly increase the risk of a power steering failure in extreme cold. A far better solution for minor power steering system leaks is to fix or replace the faulty component.
To perform tasks like power steering fluid changes or brake fluid flushes, did you think you needed a specialized vacuum pump or evacuation device? Not at all! There is a $4 item that is available at almost any store that is invaluable for these tasks. The lowly turkey baster is ideal for either of these jobs and is asset to any toolbox.
Why Change Power Steering Fluid?
Few car owners ever think of changing their power steering fluid. But like any other oil, it deteriorates with time and its depletion can cause excessive wear and deposit formation. Changing to a good synthetic power steering fluid is an upgrade for any car or truck and can offer the following benefits:
Reduced friction for optimized efficiency
Lower wear, longer steering pump life
Fast oil flow in cold weather
Improved resistance to extreme heat
Makes pump seals more pliable for leak prevention
Items Needed To Change Power Steering Fluid
Turkey baster
2 bottles of power steering fluid (450 to 473ml each, or so)
Used oil container such as an old margarine container
Paper towels or rags
Before Starting
Clean top of power steering fluid reservoir. Important: there is likely an accessory belt adjacent to the fluid reservoir. At each step of this process, prevent oil drips from defiling this belt by covering it with rags or paper towel. A small amount of oil can leak from the baster during the evacuation process.
How to Change Power Steering Fluid
With the engine turned off, use the turkey baster to draw out old fluid until the reservoir is as empty as possible.
Refill the reservoir with new fluid, replace reservoir cap and remove any rags or paper towels from engine area.
Start engine and turn steering wheel back and forth to full stop several times. As an alternative, take the car for a good drive to make sure that the power steering fluid has circulated completely.
Stop engine and use baster to remove fluid again. Remember to cover accessory belt to protect from oil contamination.
Repeat these steps until the reservoir has been emptied and refilled at least 3 to 4 times.
The reason that new oil is added, circulated in the power steering system and then removed is that this is the only practical way to remove most all of the old fluid. By the time the reservoir has been re-filled 4 times, there is mostly brand new fluid in the system. One can certainly perform this task a few more times for good measure, but be sure to have enough power steering fluid on hand.
In our next post, we will discuss the process for flushing brake fluid.
For vehicles that require a dedicated power steering fluid, we highly recommend 
and it pours down to -53°C (-63°F). Minus 40°C outside? No problem!
To perform tasks like power steering fluid changes or brake fluid flushes, did you think you needed a specialized vacuum pump or evacuation device? Not at all! There is a $4 item that is available at almost any store that is invaluable for these tasks. The lowly turkey baster is ideal for either of these jobs and is asset to any toolbox.
