Upper Engine Cleaner - Subaru

[nissanman]

Hi guys,

Every 5,000kms i use 'Subaru Upper Engine Cleaner' on My 2000 model WRX CLUB SPEC.

Have people heard of this product before? ( refer to attached photo)

Subaru recommend it, as..

"Engine power output is created by the burning of fuel in a vehicle's cylinders. As petrol is a hydrocarbon fuel, made up of hydrogen and carbon, after combustion it leaves carbon as a by-product or deposit. Over a relatively short period of time the carbon deposits on the walls of the combustion chamber, the piston crown (top surface), and on the valves, can result in the deterioration of engine efficiency. This may lead to poor fuel economy, reduced power and harder starting.
To overcome this situation, the factory has formulated ‘Upper Engine Cleaner (SA459)’, which is a concentrated combustion chamber and induction system cleaner. This product helps clean and purge gum, varnish, and carbon deposits. Using this solvent during scheduled servicing has proven to be a valuable form of preventative maintenance.

If your vehicle were subjected to regular stop/start driving, short trips, or poor fuel quality, the build up of gum, varnish, and carbon deposits would be far more rapid. In addition to ‘Upper Engine Cleaner (SA459)’, we suggest the use of ‘SA718 Fuel Additive’ to maximise your engine’s protection against such concerns.

Both products have been specially formulated by Fuji Heavy Industries, the manufacturer of your Subaru vehicle, to be compatible with the Subaru horizontally opposed engine and it’s technically advanced electronics. These products are available through all authorised Subaru Dealers. ''

It contains-
Butane - 10%
Propane - 10%
Aliphatic/Aromatic Hydrocarbons (toluene, benzene, acetone etc) - 60%
Ammonium Hydroxide -10%
Butyl cellosolve - 10% (This is the foaming additive)

Obvoiusly we would not use this on a MPS for the reason it is not a Boxer Engine but i have heard of others using it on S14's, Commodores etc etc with good results.

Anyone used it on their MPS?

Should i be the test dummy? lol

Cheers

[TD]

Yeah, used to use it on my old Astina SP and Galant V6, was great for shutting up noisy valve trains.

[nissanman]

Yeah, used to use it on my old Astina SP and Galant V6, was great for shutting up noisy valve trains.

Would you use it on your mps???

[blackbetty]

I used to use it on my subi as well, but no I wouldnt use it on my MPS

[Nirvandan]

Would Mazda or Subaru give the green light to use this on the MPS?

[kagerou]

its like that product called seafoam the americans are using

dont see any issue with using it, and i would use it, just trying to think where it can be sprayed... probably have to take off the top mount and spray it down the duct into the manifold

[nissanman]

Might search the US forums
CHeers guys.

Havnt look at how it could be hard to find a vacuum hose to remove off the manifold..

[kagerou]

Might search the US forums
CHeers guys.

Havnt look at how it could be hard to find a vacuum hose to remove off the manifold..

ok found one, will take a photo of it later and upload it

there are two vacuum lines that can be used, but i would use the one that is closer to the throttle plate

[nissanman]

ok found one, will take a photo of it later and upload it

there are two vacuum lines that can be used, but i would use the one that is closer to the throttle plate

Cheers,

Look forward to it

[kmh001]

One of the problems we have is an accumulation of sludge in the bottom of the inlet manifold, due to the PCV picking up heavy oil mist from the crank case. There is also oily residue usually found from the top crank case vent just after the MAF, all the way to the inlet valves.

I think we have a genuine need to periodically clean the inside of our engines to keep detonation at bay. I've been cleaning the inside of my engine by hand, but if this stuff works like seafoam it would make cleaning a lot easier.

If you're on good terms with your local Mazda service manager ask him what he thinks. How much is it?

Look forward to more news on this.