Fuel ?'s
08-10-2010 | 12:04 PM
#2
SORE MEMBER
Joined: Apr 2004
Posts: 6,984
Likes: 2
From: 29°50'49.74"N 95° 5'17.55"W.......TEXAS
Check the label on the top of the motor, 87 octane is fine for most Mercruiser except their Blue motors.
08-11-2010 | 11:45 AM
#3
Charter Member # 55
Joined: Oct 2000
Posts: 20,244
Likes: 2,491
From: Omaha/LOTO
What engine?????????
Merc black engines and non supercharged Merc Racing blue engines are fine on 87 octane. Running 87 non ethanol fuel will burn the cleanest and keep your transom from getting black.
Merc black engines and non supercharged Merc Racing blue engines are fine on 87 octane. Running 87 non ethanol fuel will burn the cleanest and keep your transom from getting black.
08-12-2010 | 08:35 PM
#6
Registered
Joined: Jun 2001
Posts: 3,345
Likes: 0
From: Michigan
never seen a race engine with burnt valves using 87/86! 502 mpi's/500hp and 525's all have made 5-7hp more on the dyno and have no deposits that are abnormal. they are ALWAYS running WOT too.!!!
