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Join Date: Apr 2008
03-07-2012, 2:00 PM
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So this morning I was on my friends 1996 sport Nautique and we were talking about regular maintenance. I asked him what oil he used and to my surprise he uses Valvoline 5W-20. Now I don't have anything against Valvoline but doesn't that seem like a pretty thin oil for a boat in Arizona?
I have an 04 VLX with the 340 monsoon and use Pennzoil 20W-50.
So out of curiosity. . . What do you guys out there use?
Boat-
Engine-
Location-
Winter/Summer-
Oil-
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Join Date: May 2010
03-07-2012, 2:23 PM
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'00 Mastercraft 230 VRS
5.7L Indmar LTR
Louisiana
Year round
15w40
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03-07-2012, 3:10 PM
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40w fleet oil
Lewisville Tx
Year round
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Join Date: Apr 2008
03-07-2012, 8:01 PM
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isnt that a gear oil?
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Join Date: Jul 2005
03-08-2012, 8:19 AM
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15w40
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Join Date: Apr 2011
03-08-2012, 8:33 AM
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2002 SANTE 210
Dallas, TX
year round
Valvoline 10w40 synthetic
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Join Date: Dec 2007
03-08-2012, 10:30 AM
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Marine oil or standard?
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Join Date: Mar 2002
03-08-2012, 12:11 PM
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I use filtered bacon grease. Cheaper and has added benefits. Yummy:-)
Anybody ever port/polish their intake and exhaust with silica sand?
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Join Date: Apr 2005
03-08-2012, 12:24 PM
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2005 Malibu VLX
Murrieta, ca (so-cal)
Year round
Delo high performance motor oil
15w40
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Join Date: Jun 2011
03-08-2012, 1:21 PM
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Mercruiser 15/40
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Join Date: Apr 2009
03-08-2012, 2:52 PM
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The 351 Ford's are flat tappet motors and the need to have some ZDDP to lube the cam. Valvoline VR1 or Mobile 1 both in 20w50 seem to be the easiest to find. I use the Mobile 1 in my Nautique, it's less than $30 a jug at Wallyworld.
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Join Date: Apr 2011
03-08-2012, 4:02 PM
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Interesting you should say that, I had this question recently and was assured by a local marine shop 10w40 syn was sufficient. After a quick search over at PN on flat tappet motors, I'm now headed to walmart.
Thank you and thanks DC for the thread!
Last edited by brett33; 03-08-2012 at 4:04 PM.
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Join Date: Apr 2008
03-08-2012, 10:40 PM
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Quote:
Originally Posted by tx_foilhead
The 351 Ford's are flat tappet motors and the need to have some ZDDP to lube the cam. Valvoline VR1 or Mobile 1 both in 20w50 seem to be the easiest to find. I use the Mobile 1 in my Nautique, it's less than $30 a jug at Wallyworld.
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What's ZDDP?
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Join Date: Mar 2002
03-09-2012, 6:21 AM
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Zinc dialkyldithiophosphates (often referred to as ZDDP) are a family of coordination compounds invented by Castrol that feature zinc bound to the anion of dithiophosphoric acid.
Crankcase oils with reduced ZDDP have been cited as causing damage to, or failure of, classic/collector car flat tappet camshafts and lifters which undergo very high boundary layer pressures and/or shear forces at their contact faces, and in other regions such as big-end/main bearings, and piston rings and pins. Roller camshafts are more commonly used to reduce camshaft lobe friction in modern engines. There are additives, such as STP(R) Oil Treatment, and some racing oils such as Valvoline VR-1[4], are available in the retail market with the necessary amount of ZDDP for engines using increased valve spring pressures.
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Join Date: Apr 2009
03-09-2012, 7:52 AM
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Nice, straight out of some dictionary! Lol
It used to be in most oils, as the motors have gone to roller cams there isn't as much need for it in newer motors. To extend the life of the cats they have removed it from oil which is the problem. This now includes the diesel oils. What oils have it still has been a moving target the last few years as it has been removed. The VR1 and Mobile1 are listed as racing oil because of the additive package which has the ZDDP as well as there other additives and are designed to be changed at normal intervals unlike other racing oils which may need changing after a few uses.
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Join Date: Feb 2011
03-09-2012, 8:18 AM
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08 Moomba Mobius LSV
325 Indmar
Houston, TX
Year Round
Amz Oil Full Syn 15W-40
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Join Date: Mar 2004
03-09-2012, 9:03 AM
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Nautique
GT 40..........Straight 40w
Excaliber 330hp........15w-40w
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Join Date: Nov 2006
03-10-2012, 10:50 AM
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Boat- Sanger D215
Engine- Mercruiser Scorpeion 330
Location- Canada
Winter/Summer- LOL
Oil- Castrol or Mobil1 5w-40
Tuneman, I tried using the filtered bacon grease but found that not having it available for my breakfast consumption stopped the hardening I was getting in my arteries. This in turn made it much more difficult to stay standing up when I got tired. I had to go back to regular products for the boat to keep me functioning. (The Merc doesn't mind running on that packaged stuff.)
Last edited by rallyart; 03-10-2012 at 10:56 AM.
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Join Date: Mar 2009
03-16-2012, 12:03 PM
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15w40 98 Malibu vlx
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