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View Poll Results: Synthetic oil or not?

458. You may not vote on this poll
  • Yes I use synthetic oil

    301 65.72%
  • No I do not use synthetic oil

    140 30.57%
  • Hell, I don't even know where the oil cap is

    17 3.71%
Page 9 of 16 FirstFirst ... 7891011 ... LastLast
Results 81 to 90 of 159
  1. #81
    Registered Reed Jensen's Avatar
    Join Date
    Dec 2003
    Los Angeles California
    I think a lot of lubrication problems in boat motors is because of two things.... oil viscosity.. and oil temperature.... too thick.. and too cold... oil lubricates best when it is 200 degrees .. How many of you guy get your oil up to 200 degrees? I know some blown engines have oil coolers so large the oil never gets above 70 degrees... and Crane technologies that makes the hydraulic roller lifters recommends no thicker than 10-40 oil or the lifter won't pump enough oil up the push rod to lubricate the valve rockers and cool the valve springs. Another problem is all the plumbing that gets added.. Original equipment oil pumps driven off the distributor drive weren't engineered to push oil down 25 feet of hose and coolers and remote filters.All that extra distance makes for great back pressure.. but less flow. I've noticed that all aftermarket engine builders love to measure the oil pressure as close to the pump as possible. The difference in pressure from start side to the finish side on all the oiling equipment is astounding. 80 lbs at the start.. 40 lbs at the finish... and then some people wonder why their bearings and engines fail prematurely. The other thing I've seen is measuring the oil temperature AFTER it has passed through the cooler.. I suggest measuring the temperature in the pan. I'd rather know what the oil is doing AFTER it has come off the engine parts.... if you see a temperature "spike" .. then you know your engine is having a problem... what is the point of measuring the temperature after the fact? I want to know what the engine is doing... if there is a failure starting.. you will see it with the higher oil temperature. How can you tell if you look at the oil temperature after it has been cooled?

  2. #82
    Rob VIP Member Strip Poker 388's Avatar
    My Boats:
    Hustler 388
    Join Date
    Aug 2001
    1 year old thread

    Boost makes up for Cubic Inchs

  3. #83
    Originally posted by traviss
    They say if there is not enough spring pressure the roller could actually slip on the cam lobe and create a flat spot, all because the synthetic is so slippery. It sorta baffled my mind.

    Yes, that can happen. But that means the friction between the cam lobe and the lifter is less than the friction in the lifter bearings.

    Bottom line, that is EXTREMELY low friction, which means that it will take a really long time for any flat spots to form. With conventional oil, your lifters (and other parts) would have worn out before then anyway.
    Last edited by Ric232; 03-07-2004 at 09:39 PM.

  4. #84
    Platinum Member Platinum Member Little Tommy's Avatar
    My Boats:
    94 Apache Warrior
    Join Date
    Feb 2003
    Brookfield, WI
    moble 1 every 10 hours changed!my Z06 vette is factory filled with moble 1!

  5. #85
    Registered Downtown42's Avatar
    My Boats:
    2005 42' Fountain SOLD
    Join Date
    Nov 2003
    1 Flu Ovr KuKos Nest-WI
    Curious what Sterling recomends?

  6. #86
    Registered Shorgasm's Avatar
    Join Date
    Apr 2001
    On the back of a chicks M3..If you're gonna ride my ass at least pull my hair!!
    I was a huge fan of mobil1......ran it in almost everything except the bike.
    I put a little simple theory into it and figured that MY boat doesn't get much use and sits for extended periods..No good. who cares right?

    Well what I came up with is Rotella or Delvac.

    I run the Delvac in my Blazer and the Merc.The Blazer loves real consumption.
    The boat thinks the same.....It's all still there and oddly clean.
    To me that says alot about it's soot and moisture control.
    Remember Diesel's get worked and forgot about.terrible soot and moisture in them........kinda like a marine engines for thought!

  7. #87
    Registered Jonas's Avatar
    My Boats:
    motor sports boats bikes
    Join Date
    Dec 2000
    Puerto Vallarta Mx, Lake tahoe Ca,
    redline in merc 575s innercooled blower motors and amsoil in drives lets see how it lasts...

  8. #88
    Platinum Member Platinum Member Smarty's Avatar
    My Boats:
    Join Date
    Oct 2000
    Pitman, NJ
    Mobil 1

  9. #89
    VIP Member VIP Member dykstra's Avatar
    My Boats:
    29' FOUNTAIN 525SC
    Join Date
    Dec 2003
    Washington, IL

    Re: Poll: Synthetic engine oil or no?

    mobil 1, change every 25 hours
    You can always retake a class, but you can never relive a party.

  10. #90
    Gold Member Gold Member Hydrocruiser's Avatar
    Join Date
    May 2004

    Arrow Re: Poll: Synthetic engine oil or no?

    Quote Originally Posted by Reckless32
    mcollinstn you make my point. I believe all the yap about synthetic in the engines is misplaced as per my comments above. I think synthetic oil's real benefit to the powerboat community lies in the outdrive...
    I agree in that the drive has been showing no metal on the magnets since Mobil-1 gearlube. Redline has a higher heat rating and is the highest rated so I am switching. As far as the engine Mobil-1 20W-50 V-Twin is the best with a 518*F Flashpoint and the highest HTPP numbers. Redline is equal and all the rest go down the list in performance capabilities with Amsoil being # 3 then RP 4th going by THEIR data.

    The OIL FILTER is more important than the oil according to Bob's oil site. I use a Mobil-1 or baldwin filter or the Amsoil HD which is a Baldwin.
    Last edited by Hydrocruiser; 08-04-2004 at 03:25 PM.
    Support our President; Support our Troops.

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