TCW3 Oil and Non Outboard Applications

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BillP

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Re: TCW3 Oil and Non Outboard Applications

Here's info straight out of an air cooled Sears Gamefisher owner's handbook. The powerhead is a box stock 7.5 hp Tecumseh 2 stoke lawnmower engine. <br /><br />Use 50:1 BIA TCW oil @ 1/6 pint for each gallon. If any other than BIA TCW oil is used (never use multigrade), a 32:1 ratio must be mixed @ 1/4 pint for each gallon.<br /><br />Most of us know that Tecumseh motors aren't exactly the best out there but they have been making them long enough to what oil does to their motors. I guess this shows that all air cooled motors are not created equal and blanket statements about oil use should be taken with a grain o salt.<br /><br />Like JB suggests, following the mfgs owner's manual is the best insurance you have for picking the right oil. There is no way to second guess the mfgs on what oil you should use in their product. Reading sales hype that contradicts the motor mfg doesn't cut it and is normally generated by salemen who know jack squat on anything but how to sell. Unless you really "know it all", going against mfgs spec is just asking for problems.<br /><br />About mixing oil in your 4 stroke gas. The Snapper lawnmower company used to DOUBLE their engine warranty if you mixed oil in their 4 stroke Briggs & Stratten engines. I don't know if that is still a policy but it was in writing and was for real. It sure doesn't appear they were worried about it.
 

walleyehed

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Re: TCW3 Oil and Non Outboard Applications

BillP.....Snapper doubled the warrenty-NEVER did Briggs&Stratton (THE ENGINE MANUFACTURER) double the warrenty.<br />Thats the problem here, you guys are not seeing the full picture, and some of you have shown you flat-out don't understand Oils in general. ONE weedeater, or ONE lawnmower that lasted X-number of years means squat about an oil.<br />BTW, I am a Briggs, Tec.& Kohler dealer, and I ain't pushing no oil here, there's no sales "hype", and as I said in another post...have fun!
 

Oil Man

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Re: TCW3 Oil and Non Outboard Applications

Also, BIA TC-W is NOT TC-W3!
 

walleyehed

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Re: TCW3 Oil and Non Outboard Applications

pretty sharp there, oilman! TC-W was the first in the series of TC-W oils....suppose there are any simularities????????
 

sloopy

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Re: TCW3 Oil and Non Outboard Applications

The manuals are there for a reason. I run 100:1 tcw3 pensoil synthetic in our chainsaw. Great oil, never have had any problems and no smoke either. Earlier I thought I heard someone asking why weed trimmers don't have an IDle then WOT switch, the reason is because when you run out of string for the trimmer it will gain 500 rpm and ruin the engine. I don't have to worry though my weed trimmer is 4 stroke.
 

Oil Man

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Re: TCW3 Oil and Non Outboard Applications

kenny,<br />I believe that TC-WII and TC-W3 reduced the ash content for watercooled engines. The air cooled engines like the ash, and can tolerate the buildup better. Am I right? You know about this stuff!
 

walleyehed

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Re: TCW3 Oil and Non Outboard Applications

Oil Man, Yes, you are correct...and also, STILL, the oils have to pass an air-cooled engine spec. test, to carry the TC-W3 rating.<br />One other item added to meet criteria for TC-W3, is additives that allow the oil to remain in suspension in ever-increasing lower quality fuels, and yet, still retain the lowest possible values pertaining to emissions.<br />The error I see in this post is that, take the aircraft industry for example....on piston engine aircraft (AIR-COOLED) you begin with straight mineral oil for break-in, after a period of 50-100hrs., you go to your oil of choice which in all cases, is ASHLESS DISPERSANT.<br />So, I must ask.....what is it again???? You say the oil is lower ash content, for the TC-W3's???<br />Someone should by now, be coming to the conclusion that the TC-W3 rating has NOTHING to do with what is needed for AIR-COOLED 2-strokes.
 

seahorse5

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Re: TCW3 Oil and Non Outboard Applications

There was a good oil article and a lab test in the Aug. 2000 Bass and Walleye Boats magazine. They talked about the differences between air cooled and water cooled motor lubrication needs.<br /><br />Outboards, like aircraft engines, are made to run for long periods of time at a set speed. The pistons and combustion chambers stay hot continuously and any metalic "ash" can start to glow and cause pre-ignition. Air cooled motors vary rpm quite often, and the changing temps of idle to WOT and back to idle, help eliminate the metalic deposits. Also, most piston temps are a lot higher in an aircooled motor as there is not temperature control like an outboard thermostat.
 

walleyehed

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Re: TCW3 Oil and Non Outboard Applications

Well, I can't argue with that......nice to see a reply that relays knowledge.... :)
 

Lou C

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The only applications that I know of where TCW3 is recommended for an air cooled 2 stroke is in Toro snow blowers and Lawn Boy lawnmowers. For everything else use the 2 stroke oil for air cooled 2 strokes. Reason why is that the air cooled 2 stroke oil has the low ash formula vs TCW3 which is ashless. The low ash is needed in high rpm air cooled 2 strokes like saws, weed wackers and blowers that run up to 9,000 rpm. The Toro 2 stroke snow blowers and Lawn Boys on the other hand are governed to 3600 rpm and run much cooler. In these the TCW3 will provide adequate lubrication and results in less deposits. I have a Toro 2 stroke snow blower that I use the TCW3 oil in and it still runs like new 24 years old. I bought a gallon of the Pennzoil full syn 2 stroke TCW3 when they were still selling it and it works great in the Toro.
However in my Echo & Husquvarna machines I use the Echo semi syn for air cooled 2 stroke. So I have 2 different gas cans for my 2 stroke equipment.
 
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