Been testing Oil

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Originally Posted by theorangeguy

so are you guys using it for lubrication purposes only? Seems like a good idea...I would assume it would soak into bearings and lubricate things a little better?

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Yes, as well as it's cleaning purposes. Since lead was removed from gas in the early 70's, gasoline has lost it's lubricating properties. Gas also lubes things like valve seats, combustion chambers and cylinder walls as fuel can be washed down there, as well as some fuel being washed up passed the valves and affecting valve guides and seals. It will also lube the injectors and the fuel pump. So I find the lubrication properties more important to me than anything else.
The other benefit (if it has TCW3 on the label) are the cleaning properties, cleaning the fuel injectors, the combustion chambers, and should keep down carbon buildup if used regularly.

Since they have removed sulfer from the diesel fuels now, (gave diesel it's lubricating properties) I've started adding it to my diesel as well.

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Originally Posted by Firebirdjones

Yes, as well as it's cleaning purposes. Since lead was removed from gas in the early 70's, gasoline has lost it's lubricating properties. Gas also lubes things like valve seats, combustion chambers and cylinder walls as fuel can be washed down there, as well as some fuel being washed up passed the valves and affecting valve guides and seals. It will also lube the injectors and the fuel pump. So I find the lubrication properties more important to me than anything else.
The other benefit (if it has TCW3 on the label) are the cleaning properties, cleaning the fuel injectors, the combustion chambers, and should keep down carbon buildup if used regularly.

Since they have removed sulfer from the diesel fuels now, (gave diesel it's lubricating properties) I've started adding it to my diesel as well.

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im sold...I've got a bottle of this somewhere in my garage and i'll give it a shot. Sounds like you guys run it in all your vehicles?

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Originally Posted by eteller

There was a thread on this on bobistheoilguy.com a while back. I recall some were playing around with the ratio and found a little more than 1oz. per 5gal is ideal, anymore and fuel economy started to take a hit. I add 3 1/2 oz. per fill up on the T/A. I tank up and add the oil when I get home, that crap is messy and tends to creep.

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I got a little over anxious with it and it caused a smoking issue :D Found out pretty quick it wasn't as forgiving as the lucas oil stuff :lol: So I stick to the 1 ounce per 5 gallon mix ratio and have been very happy with results, usually an increase of 1 mpg on every fillup. I just keep track of the gallons pumped in (because whats left in the tank is already mixed) and then measure out what I need and dump it in, usually when I get home as you mentioned.
Long road trips I just take the jug and measure cup with me. Yes it is messy and has a tendency to seep and stick to things very well, which leads me to believe it's doing a good a good job lubricating things in the fuel system and combustion process.

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Originally Posted by theorangeguy

im sold...I've got a bottle of this somewhere in my garage and i'll give it a shot. Sounds like you guys run it in all your vehicles?

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Yep, run it in everything, even the lawn equipment. I just dump an ounce in the 5 gallon gas can, fill it up at the station, and I'm mixed and ready to go for any lawn equipment I need around the house.

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Originally Posted by theorangeguy

so are you guys using it for lubrication purposes only? Seems like a good idea...I would assume it would soak into bearings and lubricate things a little better?

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Well I think that the jaso has better atomization effect on the fuel injectors, and for sure is far better lubricant compared to TCW3.

So if we take in consideration that the ratio is extremely low have a superior lubricant makes big difference.

The jaso or snowboard oil, is far more expensive, but I use more lean mix than 500:1 it goes even better.

Jaso keeps combustion chamber more clean than tcw3 too, I can say this because the exhaust pipe is very clean, all the carbon oxide has gone.

mobil extra 2t is the oil i use. It seems to work as well as redline si in lubricating the upper cylinders. pennzoil TCW3 havent been very effective on my 95000 miles bike, maybe the dosage needs to be increased.

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Originally Posted by stonez

mobil extra 2t is the oil i use. It seems to work as well as redline si in lubricating the upper cylinders. pennzoil TCW3 havent been very effective on my 95000 miles bike, maybe the dosage needs to be increased.

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Do not think little is good more is better

Did some reading on the JASO oils. Found the gist of that is really just an oil with less friction modifiers (less slippery) so it will work in wet clutch ATV/Bike applications. Basically just an oil that isn't as slick to sum it up in lamens terms. So nothing really special about it other than the fact that it meets wet clutch requirements that are needed before the mandated API (slippery) additives were put in place a few years ago to meet more stringent fuel requirements.

With that thinking, it would seem the JASO wouldn't work any better for the applications we are using it for (aka: fuel additive in automobiles)

What might make a difference could be synthetic vs non synthetic, but for the simple purpose of some lubricity in the fuel in such small quantities (that isn't in the fuel to begin with) I can't really see spending extra for it. If I wanted to do that I'd just go for the Amsoil stuff. The way I view it is that I'm at least improving the lubricity either way, and I've been happy with the results for very little money.

I think what he was refering was jaso fd fc for 2 t etc.

info from wiki

JASO FA – original spec established regulating lubricity, detergency, initial torque, exhaust smoke and exhaust system blocking.

JASO FB – increased lubricity, detergency, exhaust smoke and exhaust system blocking requirements over FA.

JASO FC – lubricity and initial torque requirements same as FB, however far higher detergency, exhaust smoke and exhaust system blocking requirements over FB.

JASO FD - same as FC with far higher detergency requirement.


Jaso ma is another different classification for 4t wet clutch applications. I spent a long time figuring out what was what previously.

Aha, thanks for that info. Just trying to understand how he reached his results, that makes more sense.

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Originally Posted by stonez

I think what he was refering was jaso fd fc for 2 t etc.

info from wiki

JASO FA – original spec established regulating lubricity, detergency, initial torque, exhaust smoke and exhaust system blocking.

JASO FB – increased lubricity, detergency, exhaust smoke and exhaust system blocking requirements over FA.

JASO FC – lubricity and initial torque requirements same as FB, however far higher detergency, exhaust smoke and exhaust system blocking requirements over FB.

JASO FD - same as FC with far higher detergency requirement.


Jaso ma is another different classification for 4t wet clutch applications. I spent a long time figuring out what was what previously.

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I use JASO FC

I stumbled upon this thread and was wondering if someone could help me out on which pens tc-w3 to buy is it:

amazon.com/Pennzoil-550022726-3PK-Outboard-2-Cycle-Synthetic/dp/B00C43BNIO

I tried my local walmart, and came up empty handed. Just wondering if I need the full synthetic or synthetic blend? I can not find the full synthetic for anything less then $75. Thanks

I just use the Walmart house brand of TC-W3 and have achieved noticeable results in our cars. No need to spend big $$ as it is $12.15 a gallon: Super Tech TC-W3 Outboard Motor Oil - Walmart.com

Same here, Super Tech TC-W3 at Walmart for $12 a gallon. I don't spend the big money on synthetics for something I'm going to mix in gasoline and burn, and with 10 cars plus the lawn equipment, I tend to go through it quicker than most anyway. Good results here with the cheap stuff.

Hi Guys,

First post, after reading through all 53 pages I had to subscribe to comment.
I confess to being a 2 stroke oil fan and have been using it for years, mainly in diesels where 1:200 is the accepted ideal ratio.
In Europe JASO FC mineral or semi synthetic is the 2 stroke oil most commonly added. There is some doubt about the suitability of fully synthetic oil although i've never seen anything really convincing, just enough to steer me away. It was mentioned that fully synthetic oil doesn't burn as readily as mineral oil and results in varnish like deposits around the injectors in DI engines. Who knows but mineral and semi synthetic have had zero adverse reports so I play safe since mine is DI.
DI outboards use fully synthetic TC-W3 I'm sure so it makes little sense, especially in the higher amounts they use.

My fuel consumption dropped from 6.7L/100km[35mpg] to 6.2L/100km[38] when I started using it at 3,000km with the engine run in, which is similar to the results here for the motors with spark plugs. Fuel in Oz is consistant all year but even so fuel consumption, in mine at least, does go up a bit during winter. The extra drag on wet roads might be more responsible than cooler days though?

Diesels are slow to catch on in the US but the recent changes have made them very quiet, responsive, sweet to rev, economical and the torque will make your eyes water. No more smoke or smell either with some good engines being made over there.
30% more energy in every gallon and no ethanol. In my little 4x4 you can barely hear the VW 2L engine but it pulls like a train.

Welcome to the site, Ken! Thanks for posting up on this - we are seeing more diesel cars these days. Back in the day, there were a few diesel VW's, and an occasional Oldsmobile running around and that was about it.

Hello guys. Idk if this was discussed in this lenghty thread already, but if not...

I know the main reason we do this is because of its upper cylinder lubricating properties as what tetraethyllead in gas and sulfur in diesel have done in the past. But another benefit of a 2-stroke oils is that it has detergents right?

Now if I regularly use TC-w3 with the right mix of 5oz/gal, with its detergent properties on fuel pump, injectors and the valve area; is it still worth the extra pennies and a mile to go and fill with top-tier gas?

Yes, the cleaning properties of the TCW-3 is another benefit of mixing it with the fuel.

As far as top-tier gas, I assume you refer to something like Shell V-power for instance with it's "supposed" degergents for cleaning?

If so, I would still mix the TCW-3 just for it's lubrication benefits alone. Seems all the top-tier stations (there is a list) that have the better gas don't always advertise their cleaning properties or extra detergents either. Shell is the only station around here that advertises such claims and only on the higher octane. I have to run high octane in everything here anyway so I'm not concerned whether it has cleaning properties or not, the TCW-3 will do that for me either way.

Just pointing out that the ratio is misstated one post up... Should be 1 ounce oil / 5 gallons of gas. :)

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Originally Posted by pajeff02

Just pointing out that the ratio is misstated one post up... Should be 1 ounce oil / 5 gallons of gas. :)

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Good save! I missed that.

1oz/4gal is the max and should also be fine for long term use in most cases.
I would start with 1oz/5gal and then try 1oz/4gal to see if it gives any added benefits or not. Especially in cars with noisy HP DI fuel pumps where the extra could just shut it up.