Mixing Oil Brands (TCW3)

CharlesW

Petty Officer 1st Class
Joined
Jul 8, 2003
Messages
335
Is there any problem with mixing different brands of 2 cycle oil as long as it is all TCW3 labelled?<br /><br />Charles :confused:
 

Luna Sea

Lieutenant Junior Grade
Joined
May 20, 2002
Messages
1,069
Re: Mixing Oil Brands (TCW3)

I would think not. After all, how many times do you think someone fuels up on one side of the lake, and buys whatever oil's sold there, next day goes to the other side of the lake.......
 

Jack Shellac

Lieutenant Commander
Joined
Aug 7, 2002
Messages
1,661
Re: Mixing Oil Brands (TCW3)

I don't like to do it, myself. I've heard stories of different brands of oil being mixed and gelling. Don't know how true they are since it didn't happen to anyone I actually knew. I figure why take the chance unless it's a must do situation.
 

CharlesW

Petty Officer 1st Class
Joined
Jul 8, 2003
Messages
335
Re: Mixing Oil Brands (TCW3)

Very Interesting.<br />Two replies, two somewhat differing opinions.<br />Having earlier done a search of both this board and the "Outboard Motors" site, that was about the same information I found there.<br />Evidently works for most, but there may have been a few problems, too. The reference to problems almost all seem to be "heard about" things, rather than actual first hand experiences. Considering the possible consequences, I think I will stay with one TCW3 oil and not worry about it.<br /><br />Charles :)
 

tradin

Petty Officer 3rd Class
Joined
Jun 26, 2003
Messages
98
Re: Mixing Oil Brands (TCW3)

diff oils have diff flashpoints mixing them is not recommened since the mixed oils would have a diff flashpoint and may burn a piston just my thought
 

seahorse5

Rear Admiral
Joined
Jan 24, 2002
Messages
4,698
Re: Mixing Oil Brands (TCW3)

One of the requirements for TC-W3 certification is the the oil mix with all other approved oils. The old TC-W2 lubes were the ones that gelled up.
 

Gold Bear

Petty Officer 1st Class
Joined
Sep 26, 2001
Messages
224
Re: Mixing Oil Brands (TCW3)

CharlesW <br /><br />When I was a kid, I would always shake up the milk jug before getting a drink of milk.<br /><br />To this day I still shake the milk jug even though it is probably not necessary. (The "old" guys who visit here will know what I am talking about.)<br /><br />To answer your question I think you are probably OK to mix type III oils. However, try to buy a good brand of oil and stick with it.<br /><br />Why are you asking - tell us more about the circumstances?<br /><br />Regards, <br /><br />Gold Bear ;)
 

CharlesW

Petty Officer 1st Class
Joined
Jul 8, 2003
Messages
335
Re: Mixing Oil Brands (TCW3)

First off. I just bought another gallon of Evinrude oil. :) <br />When I bought this boat and motor the oil tank was about 1/2 full. I bought a gallon of Evinrude oil and topped it off. In the meantime I was given several pints of 2 cycle oil by a friend. All TC-W3. Kendall GT-1, Pennzoil. Being a rather frugal person, I used that oil to top off the oil tank as needed. Also, not wanting a bunch of extra cans around, I poured some of them into the partial jug of OMC oil. Now, I may or may not have contaminated both my oil tank oil and my extra jug of oil. Rather than take any chances, I decided to give away my possibly contaminated jug, (with appropriate warning), siphon as much out of my oil tank as I can and start over with my fresh, pure, OMC/Evinrude gallon.<br />If there was going to be a gelling problem, which I understand is unlikely with TC-W3 oils, would it show up right away?<br />Had I not read about a possible problem, I would not have given it another thought.<br />Two problems I have, read too much, think too much in the shower.<br /><br />Charles
 

Luna Sea

Lieutenant Junior Grade
Joined
May 20, 2002
Messages
1,069
Re: Mixing Oil Brands (TCW3)

Well, you didn't hurt nuttin.... :D <br /><br />I too was gonna use the Evinrude oil, till I saw the price. Almost triple than that of West Marine's TC-W3.<br /><br />Some people will swear to use the "manufacturer's recomended......."<br /><br />Engine should be happy now! :rolleyes:
 
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