What oil you using?

I looked it up seafoam is ok to use in the vacuum line, this is what makes cars smoke.

For the oil I say just forget it and keep using quality oil, it wont help with your idle any how. Your car is too new to have sludging issues.

Also Seafoam does almost nothing in your gas, people debate if E10 does more cleaning then seafoam.

What I would do

Seafoam the vacuum will pretty much clean out some junk in the intake tract from the PCV and EGR outlets which wouldn't otherwise ever get cleaned.

And run the whole bottle of Redline Si-1 (shock dose) which is a fuel system cleaner that works since it contains PEA. You can get it at Pepboys.

Then see what happens after that.

 

i use it

 

So a whole bottle in the vacuum line and Si-1 (whats sock dose?) in the gas tank? How about Seafoam in the oil? It's recommended to pour 1/3 in the oil, gas and vacuum. I hear/read different methods, theories and recs but nothing persistent on where and how much to use lol.

This thread says TWO bottles of SF lol?
http://forums.nicoclub.com/how-to-se...y-t126583.html

 

^ Use w/e in the Vacuum which ever is the proper amount, I would just do 1/3 prob and see how that would work out.

I mean Shock Dose, Redline Si-1 has a mantinance dose and a shock dose. All the Shock dose means is, the whole bottle. I did this to my car at 45k, the mechanics at autoglitz do it every 6 months.

What oil are you using? If your car has received quality oil then seafoam in your oil wont do much. But if your changing your oil soon go for it if you want.

 

Ah ok, I'm using Mobil-1 synthetic. When I cleaned my MAF and intake body, I did notice a brown tinge to the TB...

 

^ You should be alright with your oil, no need to seafoam it.

The brown tinge is normal since the passenger side PCV seems to let oil vapor get back into the intake. This is why you see people with catch cans . Also when you see people who have like70k+ open their plenum to find it coated with dry oil.

 

it work efficiently you may try

 

I'm planning on doing seafoam on my car tomorrow through the brake booster and some in the oil, but I heard the lucas fuel cleaner works very well so i'm gonna try that in the gas tank.

here is a diy link for people who are curious ( i know i know its a 350z same engine though)

 

^ the lucas fuel cleaner is snake oil, sorry to say. It contains no PEA.

 

Last time I opened my plenum it was with Alex and Danny and it was spotless. That was ~20k miles ago. I'm curious what may be causing the rough idle then. It has yet to turn off but the sucker hesitates at an idle. When the AC is on though, it's smooth.

 

^ what is your idle at? Maybe you have installed to many air mods and need to bump up idle.

oh have you tried the relearn idle air, and all those things?

 

rough idle is often caused by vacuum leak...check the bolts on the plenum if you have a spacer. Make sure they are all evenly torqued.

 

We use to do this in the maxima club, it seems to clean the car out really good. I should do it on the G before the next oil change.

 

I've done this on a few vehicles now, and I always ALWAYS follow Seafoam's directions on the can. I pour so many ounces per gallon into the fuel tank, I pour so many ounces per quart into the crankcase, and then I use a third of a can in the intake tract.

Just for clarification, it is highly recommended not to drive the car for more than 100 miles with the seafoam in the crankcase before changing the oil.

I've noticed some big gains in the past on my 300ZX and my dad's Civic. Results were less noticeable on my G.

EDIT: Just saw another of Tian's questions. I used closer to two bottles versus one. I've never had a problem after following Seafoams dosage directions on top of the third of a bottle into the intake tract.

 

Yea def follow the directions if you are going to use seafoam. I hear no more then 1/2 a can in the vacuum or you can hydrolockk eek.

I would never use seafoam in the oil or fuel though as you know :P