Seafoam

Ultrafrozen · Jul 7, 2016

Design said:
That is only true in extreme cases where the engine has been neglected for an extended period of time, or is subject to a high amount of carbon buildup through poor design. When we get to that point, the only fix is a chemical soak followed by walnut media. In typical applications, say every 60K, the buildup is softened to an oily residue and wiped off (in small amounts) through normal operation where it's subsequently burned in the cylinders. Very similar to the way it accumulates over time. Anything that passes beyond that point is nothing more than harmless vapor/gas.

It remains to be seen as to how Honda is impacted by deposits, which is influenced mainly by poor quality fuel and long oil change intervals. But I suspect that the average Joe will maintain this car better than most other DI platforms (thanks in part to the maintenance minder).

This would be the right type of Seafoam applicator to use in DI:

I'm hoping Honda did a better job on the overall engine design than Ford did on my F150 EcoBoost. This problem gets particularly bad if the vehicle is driven short distances and the engine doesn't have a chance to warm up and blow out any accumulated carbon. Moral of the story is drive it like you stole once in a while.

Gavnzdad · Jul 7, 2016

buset46 said:
Anyone seafoam their ex-t civic yet?

I think what you can gather here is....NO.

buset46 · Jul 8, 2016

Gavnzdad said:
I think what you can gather here is....NO.

Pretty much sums it all, lol

Turbo · Sep 25, 2016

I've put it in my gas after my first oil change. About 7,000 miles. Why not can't hurt. Haven't fogged the engine though with it.

Mistahoo · Oct 8, 2016

Turbo said:
I've put it in my gas after my first oil change. About 7,000 miles. Why not can't hurt. Haven't fogged the engine though with it.

I've done the same @5,000 miles. Didn't think it would hurt to dump a can in the gas tank. I'm currently at 11,500 miles and about to toss another can in. Based on what was posted, I'm weary of fogging the engine with it lol.

ambitiousal · Aug 6, 2018

Mistahoo said:
I've done the same @5,000 miles. Didn't think it would hurt to dump a can in the gas tank. I'm currently at 11,500 miles and about to toss another can in. Based on what was posted, I'm weary of fogging the engine with it lol.

I’m thinking about seafoam-ing my civic too. Did it help your gas mileage when you used in the gas tank? How’s your civic now? Did you ever try seafoam spray in your engine?

civicdabest-foo · Aug 9, 2018

Design said:
That is only true in extreme cases where the engine has been neglected for an extended period of time, or is subject to a high amount of carbon buildup through poor design. When we get to that point, the only fix is a chemical soak followed by walnut media. In typical applications, say every 60K, the buildup is softened to an oily residue and wiped off (in small amounts) through normal operation where it's subsequently burned in the cylinders. Very similar to the way it accumulates over time. Anything that passes beyond that point is nothing more than harmless vapor/gas.

It remains to be seen as to how Honda is impacted by deposits, which is influenced mainly by poor quality fuel and long oil change intervals. But I suspect that the average Joe will maintain this car better than most other DI platforms (thanks in part to the maintenance minder).

This would be the right type of Seafoam applicator to use in DI:

"It remains to be seen.." it does. When my warranty expires, which would be 60k kms in Canada, I will be taking a look at the intake valves. I have been using cheap gas for most of my 1.5L turbo's life and stretching the oil change intervals to when the MM hits 5% oil life left. I hope my investigation will be revealing.

civicdabest-foo · Nov 23, 2018

Anyone know how to get to the throttle body on the 1.5L? A pointer to a picture of the under the hood area would help me.

IronFusion · Feb 14, 2020

Could we fog our (1.5L) cars with the pcv? IIRC from the benchmark @MAPerformance did on a Si, idle and no boost load sees direct flow to the intake manifold dominate for PCV. They did mention low flow on what I assume is equivalent to the port. Not sure of units vs flow of a SeaFoam Can. If it were compatible... That is it goes in the port/hose and flows.... I assume disabling boost would be a must, not that that is a problem.
I was just changing my can out the other day. Is this a light bulb moment?

Seafoam

Ultrafrozen

Senior Member

Gavnzdad

buset46

Member

Turbo

Senior Member

Mistahoo

Senior Member

ambitiousal

AmbitiousAl

civicdabest-foo

Senior Member

civicdabest-foo

Senior Member

IronFusion

Senior Member