Very compelling article...just as I had my Prestone-laden 300E flushed out and refilled with MB coolant two weeks ago, only to be plagued by yet more overheating issues. This time, I replaced the thermostat, coolant tank cap and replenished lost fluid, so I'm now seeing if it works.
With the Texas temps hovering in the 100s, I am concerned about the coolant mixture and pressures working properly.
Wish there was an MB endorsement somewhere about this product...
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2009 ML350 (106K) - Family vehicle
2001 CLK430 Cabriolet (80K) - Wife's car
2005 BMW 645CI (138K) - My daily driver
2016 Mustang (32K) - Daughter's car
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