Anything with ethanol gumms the crap out of small carbs on a larger vehicle it is probably ok but you have to worry when Germany fought for the longest time to prevent the import of ethanol in worries that it would damage German engines and I'm guessing Mercedes knows what they are talking about. I always use PRE Mix 93 or 94 octane Echo or Husqvarna brand I mean its worth it in the long run. Also you can still purchase ethanol free fuel at marathon and most shells just go in and ask which pump is ethanol free I always try to anyways corn doesn't belong in an engine it belongs in the belly of that piece of NY strip Im going to have for dinner tonight
