Originally Posted by smokey847
I just don't understand it. Why would MB make a V6 engine that consumes Premium fuel? My mom's Cadillac is a V8 with 320 horsepower, and takes regular. Why couldn't Mercedes pursue this path too? I don't get it...
Its A "Premium" engine!
There have been several unofficial forum tests (i tried it twice to see) and the difference in MPG (lower for regular) makes it a push dollar wise, like using synthetic oil vs regular oil with the extended life of the synthetic making the price the same so why the complaint on either one. Use whatever you want but your performance and reliability will probably suffer for zero net savings.
Just MHO and $.02.