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TCW3 and direct injection #5136568
06/17/19 12:45 PM
06/17/19 12:45 PM
Joined: Jun 2005
Posts: 5,390
North Texas
ARB1977 Offline OP
ARB1977  Offline OP

Joined: Jun 2005
Posts: 5,390
North Texas
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 01:08 PM
06/17/19 01:08 PM
Joined: Apr 2010
Posts: 3,586
Atlanta,GA
BMWTurboDzl Offline
BMWTurboDzl  Offline

Joined: Apr 2010
Posts: 3,586
Atlanta,GA
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 01:32 PM
06/17/19 01:32 PM
Joined: Mar 2012
Posts: 1,587
San Antonio, TX
E150GT Offline
E150GT  Offline

Joined: Mar 2012
Posts: 1,587
San Antonio, TX
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 01:58 PM
06/17/19 01:58 PM
Joined: May 2012
Posts: 6,710
Fort Lauderdale, FL
DoubleWasp Offline
DoubleWasp  Offline

Joined: May 2012
Posts: 6,710
Fort Lauderdale, FL
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 03:20 PM
06/17/19 03:20 PM
Joined: Jun 2015
Posts: 5,385
New England
Virtus_Probi Offline
Virtus_Probi  Offline

Joined: Jun 2015
Posts: 5,385
New England
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, 100000 miles
Last Change;
M1 10W30 HM SN+
Tokyo Roki 15208AA170 filter
Re: TCW3 and direct injection [Re: ARB1977] #5136761
06/17/19 03:58 PM
06/17/19 03:58 PM
Joined: Feb 2003
Posts: 8,557
Jupiter, Florida
Cujet Online content
Cujet  Online Content

Joined: Feb 2003
Posts: 8,557
Jupiter, Florida
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 05:10 PM
06/17/19 05:10 PM
Joined: Nov 2011
Posts: 4,256
Lima, Ohio, USA
earlyre Offline
earlyre  Offline

Joined: Nov 2011
Posts: 4,256
Lima, Ohio, USA
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: MC 5w20, & FL910s (in theory)
Re: TCW3 and direct injection [Re: ARB1977] #5136897
06/17/19 06:12 PM
06/17/19 06:12 PM
Joined: Jan 2013
Posts: 1,630
America's Dairyland
LotI Offline
LotI  Offline

Joined: Jan 2013
Posts: 1,630
America's Dairyland
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
12 Ford E450
17 VW GTI
Re: TCW3 and direct injection [Re: ARB1977] #5136960
06/17/19 07:19 PM
06/17/19 07:19 PM
Joined: Apr 2015
Posts: 507
Reunion Island
Superflan Offline
Superflan  Offline

Joined: Apr 2015
Posts: 507
Reunion Island
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, 5W40 A3/B4, 258000 Km, running on WVO
Wife's ‘01 Toyota RAV4 3-dr 2.0 VVTi, 5W40 A3/B4, 148000 Km
Re: TCW3 and direct injection [Re: ARB1977] #5137038
06/17/19 08:41 PM
06/17/19 08:41 PM
Joined: Jun 2005
Posts: 5,390
North Texas
ARB1977 Offline OP
ARB1977  Offline OP

Joined: Jun 2005
Posts: 5,390
North Texas
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 09:03 AM
06/18/19 09:03 AM
Joined: Aug 2018
Posts: 77
Central Illinois
Ponchinizo Offline
Ponchinizo  Offline

Joined: Aug 2018
Posts: 77
Central Illinois
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 12:13 PM
06/18/19 12:13 PM
Joined: Dec 2002
Posts: 42,972
New Jersey
JHZR2 Offline
Global Moderator
JHZR2  Offline
Global Moderator

Joined: Dec 2002
Posts: 42,972
New Jersey
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 10:41 AM
07/06/19 10:41 AM
Joined: Mar 2009
Posts: 3,208
Indiana
BobFout Offline
BobFout  Offline

Joined: Mar 2009
Posts: 3,208
Indiana
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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