Shell Nautilus two cycle oil - Good or bad?

slyshar3

Cadet
Joined
Jul 23, 2004
Messages
29
I recently came across two brand new gallons of Shell Nautilus two cycle oil. I run a 72 Evinrude 125 and usually use lubrimatic. Is it OK to run the Shell? Your expert opinion would be appreciated.
 

LubeDude

Admiral
Joined
Oct 8, 2003
Messages
6,945
Re: Shell Nautilus two cycle oil - Good or bad?

If its new and TC-W3 rated, its good to go.
 

ziemann

Chief Petty Officer
Joined
Apr 28, 2004
Messages
584
Re: Shell Nautilus two cycle oil - Good or bad?

Good stuff.
 

deejaycee_2000

Captain
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Mar 28, 2006
Messages
3,447
Re: Shell Nautilus two cycle oil - Good or bad?

I tried it, wasn't too happy with it, I prefer BP outboard oil
 

rickdb1boat

Supreme Mariner
Joined
Jan 23, 2002
Messages
11,195
Re: Shell Nautilus two cycle oil - Good or bad?

DJC<br /><br />What was wrong with it?
 

Cricket Too

Lieutenant Commander
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May 14, 2003
Messages
1,732
Re: Shell Nautilus two cycle oil - Good or bad?

A lot oil's you see out there are Shell base stocks anyway with an additive package in them, not all but a lot. Any TC-W3 rated oil, is well above anything intended to go through your engine in 1972, and is more than adequate, you will be fine with anything that is sold today, as long as it's TC-W3 and NMMA rated. I buy the Wal-Mart Super Tech for $6 a gallon, it's Shell base stock, TC-W3 and NMMA rated and works fine. Decarb your engine once a season or every 50 hours and you'll be fine.
 

slyshar3

Cadet
Joined
Jul 23, 2004
Messages
29
Re: Shell Nautilus two cycle oil - Good or bad?

What does De-carb mean? To run the carbs completely out of fuel? I do this every time I load the boat on the trailer.
 

rickdb1boat

Supreme Mariner
Joined
Jan 23, 2002
Messages
11,195
Re: Shell Nautilus two cycle oil - Good or bad?

Decarb is the process of using a chemical to clean the excess carbon out of the inside of the engine and allowing it to live a longer life. Here's a primer on it:<br /><br /> Decarb
 

AguaSki

Chief Petty Officer
Joined
Jul 4, 2005
Messages
545
Re: Shell Nautilus two cycle oil - Good or bad?

Did my first decarb last weekend. It was really easy and helps me feel good about the condition of my motor. A year ago I did not know what a decarb was either. Listen to these guys and follow the instructions in the link rickdb1boat provided. Help from Iboats participants is great.
 

deejaycee_2000

Captain
Joined
Mar 28, 2006
Messages
3,447
Re: Shell Nautilus two cycle oil - Good or bad?

rickdb1boat<br /><br />well there wasn't really something wrong with it as to say it doesn't work, I just found that my engines smokes alot more on the shell oil and the performance isn't as good as on BP outboard oil, must also be personal preference I geuss.
 

WillyBWright

Fleet Admiral
Joined
Dec 29, 2003
Messages
8,200
Re: Shell Nautilus two cycle oil - Good or bad?

Anything you can get now is better than was available in 1972. :)
 

Texasmark

Supreme Mariner
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Dec 20, 2005
Messages
14,786
Re: Shell Nautilus two cycle oil - Good or bad?

Well, for the record, my Merc manual back into the late 90's and later, specifies Quicksilver TCW-II or TC-W3 (don't know why the difference in the spec format, but that's what it says).<br /><br />Course I realize why they say Quicksilver; they sell it and they have tested it; have not tested every tom **** and harry's oil.<br /><br />So I'll agree with the TC-W3 comment of Willy's.<br /><br />Mark
 

Texasmark

Supreme Mariner
Joined
Dec 20, 2005
Messages
14,786
Re: Shell Nautilus two cycle oil - Good or bad?

One more thing, on Shell's oil. Their heavy engine oil, for the big rigs, construction and all the tuff stuff; Rotella T, is one of the finest oils obtainable and preferred by a lot of operators. So I would have no problem running their marine grade oil in my boat.<br /><br />Mark
 

Cricket Too

Lieutenant Commander
Joined
May 14, 2003
Messages
1,732
Re: Shell Nautilus two cycle oil - Good or bad?

72rude...you don't really need to run the carbs out of fuel everytime you come in. The fuel/oil mixture is what lubricates the cylinders when running, if you run the fuel out, then you run the engine lean and without much lube. Probably won't be that bad since your at low RPM, but it's not gonna help you much, unless you only take your boat out once every 3 months or so.
 
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