Trying to find the newer coolants made by Zerex can be frustrating. I tried to locate one known as EXTREME for an Asian vehicle. An email reply from Valvoline told me to go to the local Auto Zone or NAPA parts store. I contacted every one of these places in my area by phone and was told that they did not carry it. I later learned that you can't depend on the knowledge of the person(s) who answer the phones in these places. Most are clueless. You're simply going to have to drive from store to store. I would check all of the mass marketers in your area and maybe some of the local independent parts shops.

As suggested above, I would simply go to the MB dealer for MB coolant. The time and money you'll spend driving will eat up any savings you were hoping to achieve.

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Mike Murrell
1991 300-SEL - Model 126
M103 - SOHC
"Fräulein"