HOW TO: SEAFOAM (Motor Treatment) A 370z

XwChriswX · 05-09-2013, 10:31 PM

Quote:

Originally Posted by wstar

I used it once on a previous car, an LS1 engine with... I want to say it had around 60-75K miles on it at that point. Sucked it in through the brake booster hose. It didn't hurt the car, and it probably does help clean the intake/heads/valves.

That being said, on a newer/specialized engine like ours, I'd want to be extra sure of compatibility - mostly that their formula doesn't damage some plastic/rubber/whatever that it would come in contact with, or that it doesn't cause our ECU to go bonkers when the front O2s read that smoke and cause the engine to try to hurt itself with over-lean fueling or whatever. But I'm paranoid about these kinds of things, it's probably fine.

As for the smoke: far too often I see people talking about how this product works and using the smoke to prove it did something. "Look at all that filth it cleaned out of the engine!". Most of the smoke is undoubtedly from the product itself, not the crud it might clean out.

An oil catch can on the PCV lines, using good air filters, top-tier premium fuel, and the occasional bottle of Chevron's Techron additive (bitog really likes that one over the competition, last I checked, and those guys know their ****) should be enough to keep our engine pretty damn clean anywhere the Seafoam would touch anyways.

I used to use the STP cleaner with every tank, but heard it wasn't the best. So the Chevron bottle is the one to go with? I think I've seen different colored bottles... is there one in particular thats best?

wstar · 05-10-2013, 06:13 AM

Quote:

Originally Posted by XwChriswX

I used to use the STP cleaner with every tank, but heard it wasn't the best. So the Chevron bottle is the one to go with? I think I've seen different colored bottles... is there one in particular thats best?

Bob is the Oil Guy . Be warned: if you're at all sciency/nerdy and into cars, clicking that link could cost you weeks of time while you get sucked into it

I think the bottom line on the simple fuel system cleaner additives that are widely available, though, is to get Chevron's Concentrated Fuel System Cleaner. You can also use their Injector Cleaner if that's all that's available. Both have the same active ingredient (PEA), but the FSC is about twice as concentrated as the IC. The bottle of the concentrate stuff looks like: Chevron 65740 Techron Concentrate Plus Fuel System Cleaner - 20 oz. : Amazon.com : Automotive

There are other products that have good amounts of PEA. I think Redline's fuel treatment does as well, for instance. But the Techron's the one to remember because you can buy that just about anywhere, even a lot of gas stations.

XwChriswX · 05-10-2013, 01:09 PM

Quote:

Originally Posted by wstar

Bob is the Oil Guy . Be warned: if you're at all sciency/nerdy and into cars, clicking that link could cost you weeks of time while you get sucked into it

I think the bottom line on the simple fuel system cleaner additives that are widely available, though, is to get Chevron's Concentrated Fuel System Cleaner. You can also use their Injector Cleaner if that's all that's available. Both have the same active ingredient (PEA), but the FSC is about twice as concentrated as the IC. The bottle of the concentrate stuff looks like: Chevron 65740 Techron Concentrate Plus Fuel System Cleaner - 20 oz. : Amazon.com : Automotive

There are other products that have good amounts of PEA. I think Redline's fuel treatment does as well, for instance. But the Techron's the one to remember because you can buy that just about anywhere, even a lot of gas stations.

Thank you sir, I will be on the lookout for this.

Is it a once/twice a year sort of thing, or every fill up?

wstar · 05-11-2013, 01:29 AM

Quote:

Originally Posted by XwChriswX

Is it a once/twice a year sort of thing, or every fill up?

Beats me. I could say "depends on your conditions and habits", but honestly even if I knew those things, I don't have a fact-based answer for you. I definitely don't use anything in the fuel more often than once every few months, sometimes it's closer to a year.

I haven't done it to the Z in quite a long time now... but in place of that, roughly every 2nd or 3rd track weekend or so, I put a half tank of unleaded race fuel in the car, 98-octane Sunoco 260 GTX is usually what's available at a track pump. I figure that and the hard driving on a hot engine keeps things pretty pristine in there. It's normal street-driving conditions that gunk things up more.

fuct · 05-10-2013, 01:41 PM

Quote:

Originally Posted by XwChriswX

I used to use the STP cleaner with every tank, but heard it wasn't the best. So the Chevron bottle is the one to go with? I think I've seen different colored bottles... is there one in particular thats best?

every tank of gas you used STP cleaner? in what car, and why?

XwChriswX · 05-10-2013, 05:41 PM

Quote:

Originally Posted by fuct

every tank of gas you used STP cleaner? in what car, and why?

Previous car and this one, till about 2 months ago.

Because I thought it kept the lines clear, and it recommended to do so on the bottle...

Mind you, the STP Gas Treatment in every tank, not the Fuel System Cleaner. I only did that 2x a year. Forgive me for not differentiating the two earlier.

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