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#1
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I had called a friend of mine just after doing this and he said the same thing. Which I had already done, not intentionally already. I always run it for a few minutes after an oil change before driving to get it circulating. I could not believe the difference in the color in the .00001 mile oil change, then again the engine does have 180000+ miles on it.
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1973 Wellcraft V20 w/1988 Evinrude 120hp 1978 ProLine 20ft w/19?? Evinrude 150hp 
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#2
08-17-2011, 09:51 AM
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Viscosity is the resistance of a fluid to flow or deformation. In everyday terms (and for fluids only), we can say that viscosity is "thickness" or "internal friction". So a lower viscosity oil will provide less friction (friction in this case being lubrication quality) than a higher weight oil. So the less friction there is, the easier it is for parts to rub together producing wear. Actually, 5w20 would probably work fine in your engine in the winter time when you want a little thinner viscosity index, but for a high milage engine like yours you're better off with a 10w30 or even a 10w40 for the summer when the additional heat tends to thin out an oil. But remember that with all the additives and different blends in oil these days the oil itself is not actually 5 weight or 40 weight thickness... rather, it gives your engine the lubricating qualitys of a 5 weight or 40 weight or whatever it is that you happen to put into the crankcase. In all cases, good catch on the oil.
__________________
1987 V20 w/1987 150HP Yamaha on a Shoreland'r Trailer 1978 16.5 Airslot w/1996 120HP Force on a Four Winns trailer 1996 V21 w/1993 200HP Mercury on a Shoreline Trailer All towed by a 5.7L Hemi Durango. If God didn't have a purpose for us we wouldn't be here, so Live simply, Love generously, Care deeply, Speak kindly. (Leave the rest to God)  Silence, in the face of evil, is itself evil. Not to speak is to speak, not to act is to act. God will not hold us guiltless. Last edited by Destroyer; 08-17-2011 at 03:14 PM. Reason: spelling
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#3
08-17-2011, 10:01 AM
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About 12 years ago a buddy of mine got under his car and drained the Tranny fluid and added 5 quarts of oil to the engine. We still laugh about it today.
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84' Wellcraft Fisherman 18 / 96' Evinrude 130-Sold 20' Fisherman project underway www.ParkerFenceandDeck.com
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#4
08-17-2011, 12:20 PM
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Quote:
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'74 V-20/ BF 150 '95 V-21/ BF 150 '84 V-20/ 200 2.4 Merc '87 V-20/'18 F150 Yamaha 
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#5
08-17-2011, 01:33 PM
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Quote:
__________________
 1996 -19' NV Flats 115 Mercury 4-stroke 1983 -20' Wellcraft Center Console 250 XS
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#6
08-17-2011, 03:10 PM
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Quote:
__________________
1987 V20 w/1987 150HP Yamaha on a Shoreland'r Trailer 1978 16.5 Airslot w/1996 120HP Force on a Four Winns trailer 1996 V21 w/1993 200HP Mercury on a Shoreline Trailer All towed by a 5.7L Hemi Durango. If God didn't have a purpose for us we wouldn't be here, so Live simply, Love generously, Care deeply, Speak kindly. (Leave the rest to God) Silence, in the face of evil, is itself evil. Not to speak is to speak, not to act is to act. God will not hold us guiltless.
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#7
08-17-2011, 03:27 PM
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Quote:
__________________
1973 Wellcraft V20 w/1988 Evinrude 120hp 1978 ProLine 20ft w/19?? Evinrude 150hp
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#8
08-17-2011, 09:16 PM
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Quote:
__________________
1987 V20 w/1987 150HP Yamaha on a Shoreland'r Trailer 1978 16.5 Airslot w/1996 120HP Force on a Four Winns trailer 1996 V21 w/1993 200HP Mercury on a Shoreline Trailer All towed by a 5.7L Hemi Durango. If God didn't have a purpose for us we wouldn't be here, so Live simply, Love generously, Care deeply, Speak kindly. (Leave the rest to God) Silence, in the face of evil, is itself evil. Not to speak is to speak, not to act is to act. God will not hold us guiltless.
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