What Oil to use in Merc 600's
03-23-2007, 12:16 PM
#1
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What Oil to use in Merc 600's
What is the absolute best oil to use in Mercruiser 600's? We use Mobil 1 in the other 3 boats (Merc 5.0, Merc 502, merc 496's)
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03-23-2007, 01:30 PM
#3
Charter Member # 55
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I use Mobil1 15/50 in my 525SC and change it every 25 hours. I also just saw the walmart started carrying it in 5 qt jugs again and in looks to be the old formula before the came out with all the new "special" versions.
