| Author |
Message |
    
Mike Tavary
Member
Username: tboltmike
Post Number: 55
Registered: 10-2006
| | Posted on Friday, June 13, 2008 - 02:55 pm: | 
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My new weed trimmer calls for a 50:1 mix just as my outboard.
Sure would be nice to save on gas inventory if the O/B oil could be used in the trimmer.
I'm hoping that the O/B oil can cover both.
What's the difference in the two?
Do you think it would be safe to use? |
Robert E. Hunter
Member
Username: shamrock20
Post Number: 39
Registered: 12-2007
| | Posted on Friday, June 13, 2008 - 05:35 pm: |
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I think this is safe. The other way is not. outboard oil is high perfoemance oil and using the common 2 cycle oil will result in a melted piston. I would not hesitate to use outboard mix in my weedtrimmer or chainsaw. |
Wayne Rowlinson
Member
Username: winman99
Post Number: 42
Registered: 07-2006
| | Posted on Wednesday, June 25, 2008 - 11:36 pm: |
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Hopefully I'm not too late on this one.
I wouldn't use TCW-3 on a Trimmer/Chainsaw engine. TCW-3 is for a cooler running Liquid cooled outboard motor. 2 cycle oil designed for air cooled engines is designed with the extra heat they run at in mind.
I don't think that your trimmer would blow up instantly the first time you used TCW-3 oil in it, but I wouldn't chance using it.
I do feel your pain about having to have an inventory of different fuels. I have to keep straight gas for my lawnmower and snowblower. 40:1 mix for my grass trimmer, and 3 different mixes of TCW-3 outboard oil for my old outboards. Thank goodness I have a very forgiving old Ford truck that I can dump the different mixed fuels into when the engine that the fuel is used for is out of season. |
Mike Tavary
Member
Username: tboltmike
Post Number: 61
Registered: 10-2006
| | Posted on Thursday, June 26, 2008 - 12:30 am: |
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Robert and Wayne, Thanks for the posts. I had sent a message to Echo. Their response went so far as to say that their oil (synthetic) was superior and that any air cooled, 2 cycle mfg'ed after 1997, regardless of recommended ratio (even as high as 16:1) could be used with a 50:1 with mid grade gas and thier oil. |
Benjamin Jones
Advanced Member
Username: benjamin_jones
Post Number: 242
Registered: 04-2008
| | Posted on Saturday, June 13, 2009 - 06:55 am: |
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Google "bob is the oil guy".
I posted same question here somewhere and found out a truck load of info on his site.
From what I've read, heard and seen, keep them separated.
I don't have answers for all the questions, but Bob covers it well.
Has a lot to do with temp's, bearing pressure and load, RPM range and throttle opening & durations. Also corrosion issues...
Good luck! |
karl krautler
New member
Username: karlk
Post Number: 2
Registered: 08-2009
| | Posted on Thursday, September 24, 2009 - 11:11 am: |
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Yes...tcw3 is used for air cooled and water cooled two stroke engines! |
JUST-IN-TIME
Senior Member
Username: justintime
Post Number: 6951
Registered: 09-2006
| | Posted on Thursday, September 24, 2009 - 09:31 pm: |
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tc-w3
stands for
2 cycle, watercooled, 3rd generation
do not use water cooled oil in air cooled motors!!! |
Mike Tavary
Advanced Member
Username: tboltmike
Post Number: 163
Registered: 10-2006
| | Posted on Friday, September 25, 2009 - 12:31 am: |
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What is the difference between water cooled and air cooled oil, viscosity, additives?
Interesting how a year old post gets resurected! |
Benjamin Jones
Advanced Member
Username: benjamin_jones
Post Number: 333
Registered: 04-2008
| | Posted on Friday, September 25, 2009 - 01:21 am: |
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Additives for corrosion in marine conditions. Also, marine engines run much cooler than the air cooled ones.
Google bobistheoilguy, "bitog"
Yip, some things tend to come back when we least expect it... |
JUST-IN-TIME
Senior Member
Username: justintime
Post Number: 6952
Registered: 09-2006
| | Posted on Friday, September 25, 2009 - 01:42 am: |
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heat, thats it |
mrpops
Advanced Member
Username: mrpops
Post Number: 179
Registered: 09-2002
| | Posted on Friday, September 25, 2009 - 09:18 am: |
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over the past years i have used 2 cycle oil in any 2 cycle engine with no ill effects from racing outboards to cutting cord wood. of course i never let the ratio get any higher than 30/1 |
