I've been buying MB antifreeze from dealers for a long, long time. It's gone up over time but the last time I bought it a few months ago, it was $10.50.

I have no doubt that Zerox is as good as Mercedes but since I have to get MB parts anyway, I see no reason to go out of my way to get another brand to save $2.50.

Every last thing that's ever been poured into or bolted onto my car has had an MB part number on it except for the Mobil 1 fluids in the drive train.