Oil/Gas Mixture...

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gdean7

Seaman
Joined
Mar 16, 2005
Messages
62
On my 125 Force... the ratio for oil to gas is 50-1. Now if that ratio happens to get messed up, and a bit too much oil was added, will the engine not work properly? <br /><br /> Should I put oil in after filling it with gas so I know exactly how much to put in? Before I looked at my gas tank and noticed it was half full, so I decided to put the oil in(equal to half my tank 50-1 ratio) and then fill it with gas, hoping that the gas flow would mix it up. But it turns out I put in more oil than I needed for the amount of gas. Will this cause the engine to run rough?
 
eurolarva

eurolarva

Rear Admiral
Joined
Jun 24, 2003
Messages
4,182
Re: Oil/Gas Mixture...

More oil wont hurt anything. Break in for a rebuit motor is 24 to 1. YOur plugs may foul easier and you will be smoking a little more. Best to add gas first then figure oil to add. 2.6 oz per gallon of gas.
 
S

Schoe

Cadet
Joined
Jun 22, 2004
Messages
14
Re: Oil/Gas Mixture...

More is better. On a 2-stroke engine if you do not put enough oil into the gas you will ruin the bearings, and thats all she wrote for the engine. Use the best 2-stroke oil you can find that is rated for outboards. I currently use a synthetic 2-stroke oil which smokes less and lubes better. Get an oil measuring device which shows exactly how much to put in, that way you will always be sure. You can pick them up at almost any marine supply store, Cabelas sells them if you are near one.
 
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noshelter

Petty Officer 3rd Class
Joined
Jun 14, 2002
Messages
87
Re: Oil/Gas Mixture...

Right now I have been using a regular 2-stroke oil. Is it okay to begin using synthetics? Will the blend with the left over 2-stroke hurt or damage the engine? <br /><br /><br />SSS
 
I

imported_LakeRunner

Petty Officer 2nd Class
Joined
Dec 4, 2005
Messages
174
Re: Oil/Gas Mixture...

a 16 ounce bottle will treat 6 gallons at a 50:1 ratio. I run with three 6 gallon tanks on my Bayliner. I also add a fuel conditioner/stabilizer to combat varnishing and the effects of ethanol base fuels.
 
roscoe

roscoe

Supreme Mariner
Joined
Oct 30, 2002
Messages
21,753
Re: Oil/Gas Mixture...

N_F_A , if both oils are tcw-3 rated, you can mix them.<br />They have to mix with other tcw-3 oils to get the tcw-3 rating.
 
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noshelter

Petty Officer 3rd Class
Joined
Jun 14, 2002
Messages
87
Re: Oil/Gas Mixture...

Thanks Roscoe, I accidentally picked up a synthetic blend and wasn't sure if it was safe or not to mix it with the previous mix of regular 2-stroke and 87 octance. I picked up a proper 2-stroke oil afterwards, but will check to see if it's TCW-3 rated and if I can mix the two together I will. Also, is 2-cycle the same as 2-stroke? Is there much difference?<br /><br />Thanks again,<br /><br /><br />SSS
 
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noshelter

Petty Officer 3rd Class
Joined
Jun 14, 2002
Messages
87
Re: Oil/Gas Mixture...

Thanks Roscoe, just curious as I've seen some 2-cycles and they don't say anything about marine applications.<br /><br /><br />SSS
 
roscoe

roscoe

Supreme Mariner
Joined
Oct 30, 2002
Messages
21,753
Re: Oil/Gas Mixture...

There are two types.<br />Watercooled which generally run cooler.<br /><br />And air cooled, that run hot, like a weedeater.<br /><br />You need tcw-3 rated oil for your outboard.<br />TCW stands for Two Cycle Watercooled,
 
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