Originally Posted by oledoc2u

he asked, 87 octane, maybe, maybe not, the car will compensate, and yes, for those of you that don't care...burn it...you won't be keeping it forever as some of us will...so, some will take all better care of our cars, changing the oil early, air filters, while others don't care...it runs fine...and you are right. But it is taking its toll. Running lean, means running hotter, not in the sense your temperature gauge will show, but what the engine endures. These cars have a very good brain and they will compensate, that's why MB runs for so long...but it doesn't make it right, just makes it so so...a lot of people treat their car that way...its just a thing to drive until its time to try something else...but our toys, we seem to take better care of....so everyone is right on this one...just depends which side of the car lift you are on...