Is it OK to mix different brands of power steering fluid?
As long as the replacement or top up fluid is the correct type for the car, there should be no problem in mixing different brands of power steering fluids..
Is ATF 4 the same as power steering fluid?
Both of them are hydraulic fluids. But, the biggest difference is ATF contains detergents and friction modifiers. The detergents filter grease and dirt that may go into the power steering system and damage the pump and steering rack’s hydraulic valves.
Does it matter what type of power steering fluid you use?
POWER STEERING FLUID TYPES Different vehicle applications may require different types of power steering fluid. Some use ATF transmission fluid such as Dexron, Mercon, Type F, ATF+4, etc.) but many newer vehicles use some type of synthetic-based hydraulic fluid that is specifically formulated for power steering use.
Is it OK to use ATF in power steering?
Yes, you can use transmission fluid in place of a power steering fluid. But, make sure you check the car manufacturer’s recommendations before using the ATF as a substitute.
Is it really necessary to change power steering fluid?
Other than that, experts suggest changing power steering fluid anywhere from every couple of years to every 100,000 miles, so consult a trusted mechanic, who can advise you on the best times to change your power steering fluid for your vehicle. If you want to do the job yourself, it’s quick and easy.