IMO, if you're changing coolant every 3 years, so what if it's $30 a gallon? If you use an equation of how much your time is worth based on your profession, how much money have you cost yourself researching the info? Probably at least a few gallons of MB coolant - lol..

I'm no moneybags, but my peace of mind is worth it considering I have to pony up the extra dough only once every 3 years, and I plan to keep the car permanently. It isn't like paying $15 a quart for some MB synthetic oil every 5k.

For that matter, I've gotten 80k out of my front OEM MB brake pads and 140k on the original front rotors. I could buy the discount pads and rotors and save maybe $80 total, but why? The OEMs have proven themselves. I know they perform, so I will buy them again

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former: 83 300D, 97 C230, 93 400E

current: 08 C300 Luxury , 92 500SL