What gas to run in a Mercury 600
#1
What gas to run in a Mercury 600
The Mercury website says that it's built to run on 87 octane but I was always told to run supreme on a blower motor. I'd like to hear from other people that have a Merc 600. What gas do you run?
http://www.mercuryracing.com/sterndr...gines/600-sci/
http://www.mercuryracing.com/sterndr...gines/600-sci/
#3
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I know you can run 89 in the 700. So I bet it would be ok for the 600 Greg. But then again- better safe than sorry. Merc normally knows what's up tho.
Did you get it out yesterday?
Did you get it out yesterday?
#6
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#7
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Just curious why you would want to save a few pennies per gallon and take a risk of potentially hurting the motor from detonation. I could see if you are in a bind and 87 was the only thing available but it is just cheap insurance to run premium fuel.
#8
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I remember this exactly because last year I had to show a owner with a 600 SCI per OEM service manual racing # 14 - Merc Racing lists the 600 sci and the 700 sci oem stock and of course stock tune - US gas blends - Unleaded 91 octane or RON = 98
Added info = Also FYI had to prove that MERC lists again SM # 14 Supercharger oil lists Castrol Syntec 5 W- 50 - for the same owner.
Any NA sayers I will send you copies per MERC RACING OEM Service Manual to frame on your wall.. I can careless what the marketing team shows in their listings for the current offerings as this was not a current brand new engine either. Things change and ECM tunes change as well thru out the years. Just saying
Added info = Also FYI had to prove that MERC lists again SM # 14 Supercharger oil lists Castrol Syntec 5 W- 50 - for the same owner.
Any NA sayers I will send you copies per MERC RACING OEM Service Manual to frame on your wall.. I can careless what the marketing team shows in their listings for the current offerings as this was not a current brand new engine either. Things change and ECM tunes change as well thru out the years. Just saying
Last edited by BUP; 05-11-2015 at 04:02 PM.
#9
Not looking to save money at all, I just want to know what the best gas to run in it is. The reason I ask is because with the 496HO's and 525's they actually run a little better on 87 and don't soot up the transom as much.
Last edited by grads2112; 05-12-2015 at 12:00 AM.