I recently bought a Mercedez and was wondering why it says only use Concentrated MB Wiper Fluid. Does it really matter or is their an alternative name brand I should buy that is approved?
Thanks

 

Any w/shield washer fluid will work fine.
I've tried them all, and some suds up a bit more than others, but
none plug the nozzle, etc. or any of that.
Buy the cheap one in the auto parts store already mixed for a dollar.
Done.