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  1. #11
    JB Marshall Gold Member J.B. Marshall's Avatar
    My Boats:
    Formula, 382 Fastech - SOLD
    Join Date
    Mar 2006
    Hudson Valley, NY
    I have stayed with Merc 20/50 oil & filters. Don't know if I would get better performance if I switched after 250 hrs.

    Anyone have any input on that???

  2. #12
    Forum Regulator VIP Member Sydwayz's Avatar
    My Boats:
    37' Active Thunder AVH; 17' Speedliner Cat OB
    Join Date
    May 2001
    Mobil 1 15w50
    Napa Wix Racing Filter 51061R (Best filter on the market.)

  3. #13
    Registered purnell's Avatar
    My Boats:
    02-39' Kryptonite , 03-Gladiator and she's a bad MF'er
    Join Date
    Mar 2004
    Ocean CITY, Md

    Thumbs up

    royal purple in everything, merc. filters

  4. #14
    VIP Member VIP Member offshoredrillin's Avatar
    My Boats:
    00 Cig Tiger,74 Cig 20'
    Join Date
    Feb 2004
    Quote Originally Posted by Sydwayz View Post
    Mobil 1 15w50
    Napa Wix Racing Filter 51061R (Best filter on the market.)
    this is what I run as well.

  5. #15
    Platinum Member Platinum Member Top Ven's Avatar
    My Boats:
    Nor-Tech 390 Sport CC
    Join Date
    Jul 2007
    New Jersey
    We use Merc 20w/50 oil and Merc filters change every 20 hrs or so, so far 280 hrs and no problems

  6. #16
    My Boats:
    45SS Sonic 600's EFI's
    Join Date
    Mar 2003
    Manassas Va.
    I used mobil one, no complaints at all. I switched to Royal Purple. I know people in racing who say they are showing slighty better numbers on the dyno. I like the Wix filters, they make a anti- drain back filter that if you are quick enough does not dump alot of the oil all over things when you remove it.

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