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TCW3 and direct injection #5136568 06/17/19 11:45 AM
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ARB1977 Offline OP
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Has anyone ran this combination? More so with a turbo? Honda 1.5LT is the engine we have. Almost 20K miles and no oil rise on the dipstick if y’all are wondering.


2015 Tacoma 4.0L 60K (as of 02/23/18)
AMSOIL SS 0W30 / Toyota filter

2018 CRV 1.5L (as of 05/11/18)
Factory fill / Honda filter
Re: TCW3 and direct injection [Re: ARB1977] #5136581 06/17/19 12:08 PM
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BMWTurboDzl Offline
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Correlation is not causation.


“It took untold generations to get you where you are. A little gratitude might be in order. If you’re going to insist on bending the world to your way, you better have your reasons.”

435i
Re: TCW3 and direct injection [Re: ARB1977] #5136615 06/17/19 12:32 PM
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I've always worried about additives especially tcw3 due to the HPFP. Not sure if it's designed to pressurize oil like that.


1984 Mercedes-Benz 300SD - 100k
1995 F150 XL 4.9 reg cab 5MT - 251k 5w30
2016 Mazda6 Touring 6MT - 68k 5w30
2006 Buick Lucerne CXL 3.8 40k 5w30
Re: TCW3 and direct injection [Re: ARB1977] #5136641 06/17/19 12:58 PM
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DoubleWasp Offline
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Diesel injection pumps have no complaint about TCW3. They're all DI. Don't know if GDI pumps are built as well.


07 Lincoln Navigator M1 0w-40/FU
68 Charger R/T / Supercharged 440 VR1/DBL7349
07 Ram 3500 4x4 / Cummins 6.7 /DBL7349
17 Maserati GranTurismo Cabrio
Re: TCW3 and direct injection [Re: ARB1977] #5136728 06/17/19 02:20 PM
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Virtus_Probi Offline
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There was a poster here who touted using TCW3 in his Civic turbo, but I don't think he has that ride anymore.


2014 Forester XT, 105000 miles
Last Change;
PP 5w30 d1G2
Tokyo Roki 15208AA170 filter
Re: TCW3 and direct injection [Re: ARB1977] #5136761 06/17/19 02:58 PM
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It's good to remember that a small percentage of the oil added to gasoline (Marvel or TCW-III) will find it's way past the piston rings and into the sump. Over the course of an oil change, with constant use of a gasoline additive, the quantity can be sufficient enough to significantly alter the oil's good characteristics.


People who count on their fingers should maintain a discreet silence.
Re: TCW3 and direct injection [Re: Cujet] #5136835 06/17/19 04:10 PM
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earlyre Offline
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Originally Posted by Cujet
It's good to remember that a small percentage of the oil added to gasoline (Marvel or TCW-III) will find it's way past the piston rings and into the sump. Over the course of an oil change, with constant use of a gasoline additive, the quantity can be sufficient enough to significantly alter the oil's good characteristics.


I can see where you're coming from...but most tcw3 adders are doing it at a ratio of 640:1 (5gal gas to one oz TCW3) it's pretty well diluted.

I'm currently running it in my Cmax, b\c of the frequent start/stop nature of the hybrid drivetrain... it does seem to be smoother with the tcw3...


Mine:
13 Ford C-MAX hybrid: Havoline syn 5w20,& Napa Gold 1348
Re: TCW3 and direct injection [Re: ARB1977] #5136897 06/17/19 05:12 PM
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Where does this come from? Who thought a 2-stroke oil added to petrol would be beneficial? I’ve heard about UCL but there are millions of engines running forever without it...why would you do this? Why don’t the oil companies jump on this? Why don’t OEM’s recommend it?

I think I answered my own questions!


03 Honda Interceptor
11 Kawasaki KLR 650
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Re: TCW3 and direct injection [Re: ARB1977] #5136960 06/17/19 06:19 PM
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While I'm a TCW3 lover for years - either at 640:1 ratio as gasoline additive, random ratio in IDI engines, or 25:1 in two stroke OPE - I now have one TGDI car and I don't use TCW3 in it because I'm afraid of adverse effects.

What I've seen so far while running TCW3:
+Smoother and quicker cold starts
+Less engine noise at idle and low rpms, all loads
+Less motor oil consumption on engines that burns some on decel
+Prevents sticking float valves and other issues on carburators, keeps them clean and free from deposits
-Some setups experiences a slightly lean running condition/behavior at 640:1 ratio, like my friend's bike engine (Kawasaki Vulcan S, an ER6-derived roadster in custom disguise, injected inline-2, with full decat exhaust)
-can be tricky to keep sealed all times, ends up messy before the end of a quart jug


‘01 Peugeot Partner 1.9 D, 15W40 E7, 270000 Km, running on WVO
Wife's '19 Suzuki Vitara 1.0 Boosterjet (TGDI), 5W40 A3/B4, 18000 Km
Backup ‘01 Toyota RAV4 3-dr 2.0 VVTi, 5W40 A3/B4, 16?000 Km
Re: TCW3 and direct injection [Re: ARB1977] #5137038 06/17/19 07:41 PM
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ARB1977 Offline OP
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Thanks fellas. I’ll just stick to using PI before each oil change. I know it does wonders on port injection, wasn’t sure about DI.


2015 Tacoma 4.0L 60K (as of 02/23/18)
AMSOIL SS 0W30 / Toyota filter

2018 CRV 1.5L (as of 05/11/18)
Factory fill / Honda filter
Re: TCW3 and direct injection [Re: LotI] #5137345 06/18/19 08:03 AM
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Originally Posted by LotI
Where does this come from? Who thought a 2-stroke oil added to petrol would be beneficial? I’ve heard about UCL but there are millions of engines running forever without it...why would you do this? Why don’t the oil companies jump on this? Why don’t OEM’s recommend it?

I think I answered my own questions!


My cars engine is old and tired, using TCW3 slows my oil consumption a bit. Mostly I use it for the warm fuzzy feeling it gives me, not the car! LOL Certainly isn't doing any harm to lube that old fuel pump in there a bit either. The car was fine without it, but it's a little better with it, plus up to 40% more warm fuzzies a gallon

Re: TCW3 and direct injection [Re: ARB1977] #5137486 06/18/19 11:13 AM
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Someplace on here I have an image of the soot on my tailpipe while running tcw-3. I always dosed light, and it went away when I stopped.

My hope was some HPFP lubrication and fuel
Stabilization, both more important to me than UC lube. But if it’s coming out as soot, it’s doing no better anywhere else.

Diesels are a bit different in that diesel fuel is more oily and the combustion process is more ideal for the heavier ends.

Fuel injected gas engines also have the whole fuel on valve and vaporization thing going, which makes me less concerned.

Re: TCW3 and direct injection [Re: ARB1977] #5152973 07/06/19 09:41 AM
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I use TC-W3 oil that is designed for use in DI gas engines (along with previous types).


2003 VW Jetta TDI (Sold) / 2015 VW GTI 2.0T
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