effects TC-W3 might have on oil when in gasoline

[MrRPM]

So most people will agree that most engines get a little bit of fuel dilution in their oil when the engine is first started esp on Carbureted engines that are idled alot to warm up. eventually the fuel will burn off as oil temps climb and its not a problem

well do any of you think the small traces of TC-W3 thats getting into the oil have any negative effects? Using MMO in the gas is less scary since we know MMO in the oil won't hurt, but TC-W3 is designed for 2-strokes. any blow by in a 2 stroke is just going to help lube the crank since thats how its lubricated in the first place.

I am running TC-W3 in my fuel injected jeep 4.0L and Im also running it in my 1984 ATC110 (carbed 3 wheeler) and wonder if using TC-W3 in every tank could have side effects.

 

[Rand]

depends on how much you use..

if you are using 1oz per 10 gallon.. I doubt it..

if you are using 2-3oz per 10gallon there might be a variety of positive and negative effects.

 

[MrRPM]

1 oz per 5 gallons
that seems to be what most are using also.

 

[Loobed]

You will get deposits in your combustion chamber and on your spark plugs. You will probably get deposits even if you don't use it.

 

[MrRPM]

Originally Posted By: Loobed


You will get deposits in your combustion chamber and on your spark plugs. You will probably get deposits even if you don't use it.



Im a little confused by your post here lol

 

[Loobed]

Originally Posted By: MrRPM
Originally Posted By: Loobed


You will get deposits in your combustion chamber and on your spark plugs. You will probably get deposits even if you don't use it.



Im a little confused by your post here lol


Burning oil in the combustion chamber will create deposits. TCW3 is oil. Even if you don't use TCW3 or any additive, some oil from the crankcase will get in the combustion chamber and create deposits. If you add TCW3 you want to minimize deposits but maximize the benefit of fuel system lubrication (and upper cylinder lubrication if it is effective).

 

[MrRPM]

what im talking about is fuel with TC-W3 getting into the motor oil from fuel dilution and Im wondering if the TC-W3 will burn off like the fuel does or if it will get left behind and change the chemistry of the oil and maybe effect it negatively.

Using leaded fuels results in UOAs with high lead content, so maybe TC-W3 will have some weird effect thats not showing up in UOAs

 

[ltslimjim]

Well, if it's an "Upper Cylinder Lube", it surely has to stay behind in some form and mix with your oil...that said, it IS very minimal.

I mean, how many tanks of gas does one go through in 5,000 miles? If I add 2 ounces/10 gallons(or 1 oz / 5 gal) what does that translate to? that's 25 ounces over 5,000 miles at 40 MPG in my Civic. I don't use it, but to me, that is negligible as only a percentage of that will actually stay behind and mix in any meaningful quantity.

How much stays behind when diluted in 125 gallons, that 25 ounces(not even 1 quart!!!!)!?

Should be alright, I'd be more concerned with overusing fuel cleaners and having contaminants washed into the oil potential in a similar fashion raising wear, potentially, depending on how much contaminant/type of that may linger around and not leave via exhaust; since most effects of any fuel additive are seen are in the combustion chamber relative to when it impacts the engine in any way. The rest of that 'trickle down' effect, no pun intended, is hard to document.

I say negligible, but potentially 'somewhat' intriguing in a gas drinker that uses TC-W3 every fill up and perhaps at or greater than the ratio outlined.

 

[mongo161]

As long as your fuel is not overdosed with any kind of oil or cleaner you should not have any significant additives in your sump. IMO...TC-W3 leaves very little if no residual oil when it is burned in the combustion chamber.

TC-W3 is "Ash-less" which means that this oil burns clean with no carbon or contaminants left behind. I use a dose of 1 ounce per 5 gallons and also blend this oil with some fuel system cleaner, in the same proportion, at each fill up of 15 gallons of gas.

IMO....3 ounces of both the TC-W3 and fuel system cleaner, seems to be the right combined 6 ounce mix for my engine. The engine is not overdosed and receives a small amount of UCL and cleaner with each fill up. I'm not an advocate of "shocking the fuel system" just before each oil change.

A nice small dose, of 3 ounces of each, at fill up time seems to be a good maintenance program for me to follow.

 

[andyd]

TC3W is s'posed to ashless, so deposits shouldnt be a problem

 

[mechtech2]

I have done no testing, but at reasonable rates, this is not something I would ever worry about.

 

[ProfPS]

What's your opinion on mixing MMO & TC-W3 (50/50)? I was given a 1 gal bottle of TC-W3 that's over 10 years old. I would premix a bottle of 24 oz before adding 2 oz to the fuel tank. I have every now and then used MMO at a rate of 2 oz /15 gal that works best for me.

 

[morris]

i goofed up and ran 1 qt of mmo in 2 weeks through a dodge v-6. no trouble. go figure. its fixed now.

 

[JHZR2]

I think it makes the TCW thinner, the MMO thicker. Ive mixed.

In past experiments, MMO at too high a dose kills MPG. Ive never had the guts to OD TCW oils...

 

[MrRPM]

I have mixed MMO and TCW3 before and had no big surprises or any difference at all. i even had a bit of ATF and added that just as a filler/experiment since i read about it here.

 

[demarpaint]

Originally Posted By: JHZR2

In past experiments, MMO at too high a dose kills MPG. Ive never had the guts to OD TCW oils...


+1 An OD of MMO will kill MPG, an OD of TCW3 will foul plugs and might just leave you on the side of the road stranded. A little is good, a lot, not so good.

 

[friendly_jacek]

Originally Posted By: demarpaint
an OD of TCW3 will foul plugs and might just leave you on the side of the road stranded.


Total B.S. TWC3 is used 1:50 in 2-stroke engines and plugs are not fouled.

I'm not saying it should be used at such concentration in 4-stroke engines, but lets be honest with ourself.

 

[ltslimjim]

I think in certain apps, the use of TCW3 or MMO in an over dose scenario is an unknown variable.

In of itself when correctly dosed or under-dosed, no problem, but combine the right elements for 'issues' and it could happen. Enough to drop octane low enough that it retards timing and dumps in a high ratio of 2-stroke oil into the crankcase in an already oil burning combustion chamber with deposits present, etc, and perhaps old plugs already and you might have a misfire or other running issues.

 

[AMC]

Just before this site had crashed for the day, I was typing a long response to this question. To make a long story short, when I was about 11 or 12 years old I filled up my father's 4 stroke craftsman lawnmower with TCW3 (I think that is what is was back then, might have been TCW2) after an oil change instead of the 10w30 it was supposed to get. No one noticed anything different about the lawnmower and it ran fine for over a month until my father checked the oil and noticed the oil was black.
My father changed the oil back to the 10w30 it was supposed to get and the lawnmower ran fine for another 6 years or so after that until we bought a new one.
The moral of the story, the absolutely tiny amount of TCW3 you might have in your oil from adding it as a fuel add will probably have zero effect. There are several UOA's of people who use TCW3 and MMO as a fuel add on here and especially on that "been testin" thread on LS1 forums, nothing out of the ordinary shows up at all.

 

[MrRPM]

Originally Posted By: AMC
Just before this site had crashed for the day, I was typing a long response to this question. To make a long story short, when I was about 11 or 12 years old I filled up my father's 4 stroke craftsman lawnmower with TCW3 (I think that is what is was back then, might have been TCW2) after an oil change instead of the 10w30 it was supposed to get. No one noticed anything different about the lawnmower and it ran fine for over a month until my father checked the oil and noticed the oil was black.
My father changed the oil back to the 10w30 it was supposed to get and the lawnmower ran fine for another 6 years or so after that until we bought a new one.
The moral of the story, the absolutely tiny amount of TCW3 you might have in your oil from adding it as a fuel add will probably have zero effect. There are several UOA's of people who use TCW3 and MMO as a fuel add on here and especially on that "been testin" thread on LS1 forums, nothing out of the ordinary shows up at all.


now thats a reassuring story there! very interesting the mower ran great for so long.

back in the day one of my uncles filled his 3 wheeler with kerosene instead of gasoline and they rode it all day with it running [censored] but still running. They didn't notice till they got home and realized what was wrong.