2012 8.2L Mercs

jean-mariejean-marie Member Posts: 8 ✭✭
in General Boating Discussions
hello,
Do these engines (8.2L Merc) require super unleaded fuel or can they run on regular unleaded?
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Answers

  • Michael TMichael T Member Posts: 7,227 ✭✭✭✭✭
    They say they can run on regular but I always ran 91 Marine in my 2014 twin 502s and my all of my earlier 350 Magnums: single 350 Mag in 2011 and twin 350 Mags in 2013.
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  • determineddetermined Member Posts: 16 ✭✭
    Hi Michael T, thanks for the response.  I asked my mechanic about that and he said no problem.  Something about the 91 not having any alcohol in it being better for the engines.   
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  • Michael TMichael T Member Posts: 7,227 ✭✭✭✭✭
    YES!!!!! The 91 (Canadian pump gas) also called Marine Gas by many Canadian marinas has absolutely ZERO ethanol and has an absolute minimum octane rating of 91.

    Also:  I would use Mercruiser semi synthetic engine oil as it is now recommended (by Mercruiser) for the 502's because it prolongs the life of their catalytic converters - and those are quite expensive!
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