Recomended motor oil?

R

rderenzy

Petty Officer 1st Class
Joined
Oct 5, 2015
Messages
333
I don't need the quick silver oil right? do I need a "boating oil"?
I want to have some on hand for spare and buy in bulk for winterizing.

Any recommendation of grade?
1997 - Merc 4.3 LXgen+
Northern michigan
 
S

stonyloam

Vice Admiral
Joined
Mar 13, 2009
Messages
5,830
Right! You need "heavy duty oil". I run Rotella 15W-40, same as I run in my diesel powered tractors and combine. Get mine from Tractor Supply. You can get in 5 gal containers.
 
Last edited:
Bondo

Bondo

Moderator
Staff member
Joined
Apr 17, 2002
Messages
71,357
I run Rotella 15W-40, same as I run in my diesel powered tractors
Click to expand...

Ayuh,.... Me too,..... 55gal. drums from Sam's Club,..... ;)

'bout any motor oil found on the shelf at WallyWorld of 15W or higher to say 50W, will run just fine in our boat motors,.....

Like the grease in my signature, Any, is Better than none at all,....
 
R

rderenzy

Petty Officer 1st Class
Joined
Oct 5, 2015
Messages
333
hmm...well I don't want just "any" I want what is best for it, its old 1997
recently was using 25w-40 because that is what the old owner used
but my manual has anywhere from 15-40w (depending on temp)

probably should stick w/ what is currently in it for top offs until I winterize , eh?
 
bobkat1864

bobkat1864

Petty Officer 3rd Class
Joined
Apr 1, 2012
Messages
83
Use the search engine to look for the word "oil". Lots of reading. Lol.
 
Scott06

Scott06

Admiral
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Apr 20, 2014
Messages
7,321
Something's wrong there. Rotella us $13 a gallon at my Walmart.
 
spoilsofwar

spoilsofwar

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Jun 29, 2011
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Last edited:
mxcobra

mxcobra

Chief Petty Officer
Joined
Jun 27, 2011
Messages
526
mmmm really I just have 5w 30 in my block did not know this I better change it?..
 
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