Premium gas...
It's your car and your engine , use any fuel that you want . If you want your engine to last as long as possible then use what the OEM recommends and perform all the maintenance that is needed by the OEM recommendation.
Iminpa, you can correct me all you want and then some, believe me you will not hurt my feelings in any way, at the end of the day, what I said is all true and research has been done by people much smarter then you and me.
You brought up the 60 and 70's vehicles into this conversation and I responded with added info to bing it into the perspective.
Happy motoring to you and everyone

The cost of fuel is a concern for many, even some M-B owners. Don't the A and B class and Smart use regular fuel? M-B is pushing the Smart and getting ready to import the B class.
That said, I am still running 93 octane. Could mix 89 and 93, but won't even try that.
Another thing that you guys are not bringing up, is if something does happen to your motor, either related or unrelated to the Gas being used, and it is determined that you haven't followed the required maintenance by using the required Gas Octane, you can kiss that Warranty coverage goodbye.
Another thing that you guys are not bringing up, is if something does happen to your motor, either related or unrelated to the Gas being used, and it is determined that you haven't followed the required maintenance by using the required Gas Octane, you can kiss that Warranty coverage goodbye.
Another thing that you guys are not bringing up, is if something does happen to your motor, either related or unrelated to the Gas being used, and it is determined that you haven't followed the required maintenance by using the required Gas Octane, you can kiss that Warranty coverage goodbye.








