cons of using syn ATF in a P/S system?

[JHZR2]

Hi,

Ive read a lot of folks praising the use of synthetic ATF (M1 specifically) in P/S systems that call for ATF.

I have it in my BMW's system currently. I am curious if there is any disadvantage to using M1 syn ATF in a P/S system... Ill be flushing tomorrow, and will either get some more, or use castrol ATF that I have already.

No complaints or leaks with my current system with M1. Just want optimal fluids.

Thanks

 

[bruce381]

no problems

 

[Big Jim]

All pro, no con.

 

[Oldwolf]

My Ford Explorer calls for Mercon ATF as P/S fluid. I have been using Dexron III in my chevy P/S fluid with no problems.