Subaru Upper Engine Cleaner review...

Muzdaman · Postby **Muzdaman** » Thu Jan 21, 2010 9:52 pm

I use this stuff on my forester and it always feels much better afterwards. I might give it go on the 5.

Steampunk · Postby **Steampunk** » Thu Jan 21, 2010 11:54 pm

apparently with either the design and/or metallurgy, the Subaru "boxer" engines' intake manifold builds a layer of deposits rather easily, more so than conventional in-line engine manifolds.
Subaru dealers spray in a can of this stuff every minor service.

Hmmmm.... maybe this is part of the reason why a lot of new cars' manifolds are made of plastic?

Andrew · Postby **Andrew** » Wed Apr 21, 2010 6:54 pm

Going to give this a try over the weekend.....hopefully nothing will go wrong :lol:

Postby **Okibi** » Wed Apr 21, 2010 8:33 pm

Shoot some video Andrew. :mrgreen:

Andrew · Postby **Andrew** » Wed Apr 21, 2010 10:21 pm

Okibi wrote:Shoot some video Andrew.

Should be able to manage that

RawSouth · Postby **RawSouth** » Thu Apr 22, 2010 10:19 am

Andrew wrote:Going to give this a try over the weekend.....hopefully nothing will go wrong

Ive used this on my NB, no problems at all

Andrew · Postby **Andrew** » Thu Apr 22, 2010 10:38 am

RawSouth wrote:
Andrew wrote:Going to give this a try over the weekend.....hopefully nothing will go wrong

Ive used this on my NB, no problems at all

Was there much smoke?

RawSouth · Postby **RawSouth** » Thu Apr 22, 2010 10:48 am

Not a great deal. Probably 1-2 seconds worth of white smoke?

I only use 98 unleaded, so I wasnt expecting much.

Andrew · Postby **Andrew** » Sun Apr 25, 2010 7:40 pm

All done and everything went well.

I'm a little disappointed that we didn't fill the street with smoke although that is good I suppose :mrgreen:

I also put replaced the old Iridium plugs with some new ones along with changing the oil and all seems to be running very throughout the entire rev range.

Funny thing was whilst using the Subaru cleaner my car started to sound like a Subaru boxer engine

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Postby **Okibi** » Sun Apr 25, 2010 7:45 pm

Not much smoke at all! Thanks for taking the time to video it. So you give this product the thumbs up?

Andrew · Postby **Andrew** » Sun Apr 25, 2010 7:50 pm

Okibi wrote:Not much smoke at all! Thanks for taking the time to video it.

No worries

Okibi wrote:So you give this product the thumbs up?

Yes.

I will have to take the car for more of a drive tomorrow and see how it performs, a cold start will also be interesting.

Even prior to the oil and changing the plugs the engine felt alot smoother and idled better.

Hammer · Postby **Hammer** » Mon Apr 26, 2010 7:06 pm

green_comet wrote:These are the instructions on the can, bring the car up to running temp, then turn it off. Spray half of the can into one of the lines going to the manifold.

I'm assuming I use the same intake to the manifold for the NA8 as showned on this NB photo?

marcusus · Postby **marcusus** » Thu Apr 29, 2010 7:55 pm

I just bought a can of the stuff. I'll give it a go on the weekend when I can get a hand doing it (the whole putting the stuff in the engine at the same time as keeping the engine alive sounds challenging if doing it alone).

Dweezle · Postby **Dweezle** » Thu Apr 29, 2010 8:03 pm

marcusus wrote:I just bought a can of the stuff. I'll give it a go on the weekend when I can get a hand doing it (the whole putting the stuff in the engine at the same time as keeping the engine alive sounds challenging if doing it alone).

Not really, I just grabbed the throttle with one hand and sprayed with the other.

That said, an extra person will make it easier again.

Sent from my iPhone using Tapatalk

marcusus · Postby **marcusus** » Thu Apr 29, 2010 8:37 pm

Dweezle wrote:Not really, I just grabbed the throttle with one hand and sprayed with the other.

:facepalm:
That'll do it. Then again, I was also going to clean my air filter whilst I was at it, so having some company whilst I wait around for it to dry won't go astray.