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Lucas upper cylinder and injector cleaner #5209455 09/10/19 05:40 PM
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MVAust Offline OP
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I was walking around the parts shop on the weekend and saw a bottle of Lucas upper cylinder and injector cleaner on sale. I didn't buy it but I was wondering if anyone used it or its just money down the drain snake oil?

Re: Lucas upper cylinder and injector cleaner [Re: MVAust] #5209490 09/10/19 06:38 PM
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krismoriah72 Offline
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Here in America its the holy grail for parts store employees. No matter whats wrong with your car they will try to sell you a bottle.. no matter what you buy they will try to sell you a bottle.

With that being said.. Techron or Redline Si-1 along with some Gumout...have the highest concentration of PEA.

Re: Lucas upper cylinder and injector cleaner [Re: MVAust] #5209497 09/10/19 06:51 PM
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JustinH Online Content
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Amazon had a quart on sale, I ran it through my sonata every fillup and didn't notice anything.


'11 Hyundai Sonata GLS
'11 Scion XB
Re: Lucas upper cylinder and injector cleaner [Re: MVAust] #5209539 09/10/19 07:37 PM
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Can't say it did anything for me the one time I used it. It didn't increase/decrease mpgs or anything and I didn't notice any plug fouling so that was a plus. My understanding is there are no solvents or PEA so I'm not sure of it's cleaning abilities. I suppose it helped lube the upper cylinder (UCL) but there are cheaper alternatives for that, like MMO or some use TCW3 oil as it's even cheaper.

I guess I'm indifferent to it...meh

Last edited by Mad_Hatter; 09/10/19 07:39 PM.
Re: Lucas upper cylinder and injector cleaner [Re: MVAust] #5209626 09/10/19 09:05 PM
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MONKEYMAN Offline
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I bought a small bottle years ago and put it in my beater Saturn. Noticeably smoother and better throttle response. Bought a quart. Then several gallons. Sold the Saturn. I use it every fill up on my Elantra to use up what I bought. Idle is quiet and smooth. Throttle is responsive and highway mileage is great. Is that due to the Lucas or Hyundai engineering? No way for me to prove anything.


Truth alone triumphs, not untruth.

2017 Elantra SE
Re: Lucas upper cylinder and injector cleaner [Re: MVAust] #5210038 09/11/19 11:27 AM
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Linctex Offline
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If a good analysis or recipe were available, we'd be able to have a better guess.


"The evidence demands a verdict".
(Re:VOA)"it's nearly impossible to actually know the particular additives that are in there at what concentrations."
Re: Lucas upper cylinder and injector cleaner [Re: MVAust] #5210117 09/11/19 12:51 PM
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tiger862 Offline
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I use a bottle at each oil change. Haven't had a bad injector yet.


Tiger862
2018 Grand Caravan
Re: Lucas upper cylinder and injector cleaner [Re: tiger862] #5210124 09/11/19 12:59 PM
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kschachn Offline
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Originally Posted by tiger862
I use a bottle at each oil change. Haven't had a bad injector yet.

Me neither, but I haven't ever used it in about 1.2 million combined miles on my vehicles. One time I did use a fuel system cleaner on my BMW because it had a rough idle, but that turned out to be a pushed-back pin on an injector plug.


1994 BMW 530i, 246K
1996 Honda Accord, 280K
1999 Toyota Sienna, 420K
2000 Toyota ECHO, 281K
Re: Lucas upper cylinder and injector cleaner [Re: MVAust] #5210159 09/11/19 02:02 PM
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red7404 Offline
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IMHO the best upper lube Marvel Mystery Oil, 5 oz to 10 gal fuel. OR TC-W3. 1 oz to 5 gal fuel.

Re: Lucas upper cylinder and injector cleaner [Re: red7404] #5210185 09/11/19 02:33 PM
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Mad_Hatter Offline
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Originally Posted by red7404
IMHO the best upper lube Marvel Mystery Oil, 5 oz to 10 gal fuel. OR TC-W3. 1 oz to 5 gal fuel.

The tcw3 thing.. I've heard of it but haven't really done a deep dive on it's efficacy.

Does it work?
Doesn't the oil cause carbon in the combustion chamber or does it burn clean??
How about the emissions on a passenger car??

Re: Lucas upper cylinder and injector cleaner [Re: MVAust] #5210516 09/11/19 09:36 PM
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red7404 Offline
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i started useing TC-W3 last year on my frontier. V6 auto trans. it had 45,000 when i got it. has 56,000 now. have had no issues at all. the TC-W3 goes in each fill up. i use Quicksilver marine lubricants, 2-stroke engine oil. the mix ratios on the back are for 2 stroke engines so dont use that char for 4 stroke engines. do use 1 oz for 5 gal of gasoline. it is a a little thicker than MMO.

Re: Lucas upper cylinder and injector cleaner [Re: red7404] #5210629 09/12/19 03:49 AM
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Originally Posted by red7404
i started useing TC-W3 last year on my frontier. V6 auto trans. it had 45,000 when i got it. has 56,000 now. have had no issues at all. the TC-W3 goes in each fill up. i use Quicksilver marine lubricants, 2-stroke engine oil. the mix ratios on the back are for 2 stroke engines so dont use that char for 4 stroke engines. do use 1 oz for 5 gal of gasoline. it is a a little thicker than MMO.

Dino or synthetic, or does it make a difference? I would think a dino would burn more fully in the combustion chamber??.. leaving less of the tcw3 to make it's way into the crankcase or sucked out the exhaust valves??

Re: Lucas upper cylinder and injector cleaner [Re: MVAust] #5210714 09/12/19 07:29 AM
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MVAust Offline OP
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Does 2 stroke oil effects the catalytic converters?

Re: Lucas upper cylinder and injector cleaner [Re: MVAust] #5210768 09/12/19 08:44 AM
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Surestick Offline
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Originally Posted by MVAust
Does 2 stroke oil effects the catalytic converters?


The TC-W3 stuff isn't supposed to. It doesn't have any additives that should affect the catalyst.

Re: Lucas upper cylinder and injector cleaner [Re: Surestick] #5210854 09/12/19 10:51 AM
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Originally Posted by Surestick
Originally Posted by MVAust
Does 2 stroke oil effects the catalytic converters?


The TC-W3 stuff isn't supposed to. It doesn't have any additives that should affect the catalyst.


So it doesn't produce (when burned) any soot like stuff that could coat O2 sensors or Cats??

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