Marine TC-W3 two stroke oil as a gasoline additive - NEW

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Aug 29, 2017 | 06:14 PM

#121

Amerikaner83

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From: WA

Nice to know this thread is still alive and helpful

Oct 18, 2018 | 06:11 PM

#122

98maxBK

Junior Member

Joined: Jun 2016

Posts: 74

From: Brooklyn, NY

Just started the tc-w3 treatment on my 98 max se. Hope it cleans the $&@k out of my injectors. Been getting a sporadic bucking almost like a miss in drive/ reverse at stop. Swapped all coils and changed plugs to no avail. Cleaned tb/ iac etc. fingers crossed with the treatment

fyi did some sea foam then a couple tanks with chevron Techron and the bucking happens much less frequent so I think problem is fuel related. Also changed fuel filter recently.

Last edited by 98maxBK; Oct 18, 2018 at 06:13 PM.

Oct 18, 2018 | 08:16 PM

#123

londonflu

Member

Joined: Nov 2010

Posts: 292

From: Atlanta

Sounds like a bad injector, disconnect the plug from the coils one at a time to find which one it is, what you're looking for is no change in idle, that's the bad injector.

Oct 19, 2018 | 05:59 AM

#124

ChrisMan287

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From: NY

Run TCW3 in my turbo car

Oct 19, 2018 | 07:51 AM

#125

98maxBK

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Joined: Jun 2016

Posts: 74

From: Brooklyn, NY

Quote:

Originally Posted by londonflu

Sounds like a bad injector, disconnect the plug from the coils one at a time to find which one it is, what you're looking for is no change in idle, that's the bad injector.

Tried that before I swapped coils. Idle bogs down on every cylinder when coil is unplugged.

Nov 26, 2018 | 10:42 AM

#126

PH98I30

Senior Member

Joined: Apr 2014

Posts: 472

From: SoCal

I run TC-W3 in all my cars. No injector problems, no idle problems and no smog check problems. Been running it in my cars for 7 years now. This stuff is bomdiggity!

Dec 4, 2018 | 09:00 AM

#127

Prophecy99

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i am enjoying as well for at least 6 years

May 8, 2019 | 01:53 PM

#128

mikeg75

Supporting Maxima.org Member

Joined: Sep 2005

Posts: 221

From: S. Philadelphia

Is there a shelf life to TCW-3? I haven't put it in my car for a few years now and recently the P0400 code started coming up, so I am going to do two things:
- replace the gas cap
- refill with premium and add TCW-3

Can I use the TCW-3 that has been sitting in my garage for 2+ years?

May 8, 2019 | 03:04 PM

#129

BobPezz

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From: Rhode Island

Quote:

Originally Posted by mikeg75

It looks like there's no shelf life according to this link. https://forums.iboats.com/forum/engi...-w3-shelf-life

May 9, 2019 | 04:35 AM

#130

Turbobink

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From: Tampa Bay

Quote:

Originally Posted by mikeg75

...but an EGR no/low flow DTC doesn't have anything to do with a gas cap or with fuel grade.

May 10, 2019 | 06:33 PM

#131

mikeg75

Supporting Maxima.org Member

Joined: Sep 2005

Posts: 221

From: S. Philadelphia

After the new fuel and fuel cap replacement, letting it run 30 min and driving around the past couple days, the EGR code hasn't come back but I'll post if it does.

Thanks for the ideas, guys.

May 21, 2019 | 12:25 PM

#132

Prophecy99

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From: SE PA

still using this on my 5.5 gen, been 6-7 years. i also luckly have a ethanol free gas station near my work for my small engines (mowers , yard equipment)

i also saw a wawa gas station in the Poconos with an ethanal free 87 octane. pretty cool!

Sep 27, 2019 | 07:25 AM

#133

Jbkflowers

Newbie - Just Registered

Joined: Jun 2019

Posts: 1

Tried TC-W3 for first time last night at a fill up on 5th gen with 225042 miles. Was my moms car and recently inherited it. Notice a difference already in smoothness at idle and quietness. I’m a believer!!