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Upper cylinder cleaner worries.


Nick89
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Hey all. Im about to do a service on my 1998 subaru impreza, non turbo two litre. I figured I'd run some of that upper cylinder cleaner through it, since I havent done it in the 20,000 or so kays ive had it, and i doubt the previous owners did either. The service department guy at Subaru warned me that it could damage some of the seals within the engine if it hasn't been done before. Car has done 158,000 kays. Im sure he's just being cautious, and I can't see it buggering anything, but I'd hate to do it and then....I dunno....wreck a valve steam seal or anything.

Soooo......go for it? Or leave it alone? As I said, he's probably legally obliged to warn me of it, but he said it is part of subarus service plan and should be done every 10,000 kay service anyhow. So yeah, advice?

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I did it on my car with no issues (don't know if it was ever done before I got it, but have done it twice with no issues that I know of), I don't know why he would say that it would damage seals if they use it. As you said it may be a*** covering if something did go wrong. Personally I would do it, car seem to run better after it.

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Just ran some through. Not a lick of difference! And no smoke whatsoever either! Was a bit disappointing actually haha. And yes, I did spray it in the right place. I guess since my car sees almost entirely motorway running, there isn't much of a chance for carbon and other gunk to build up like in city driving.

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 Nick89 said:
Just ran some through. Not a lick of difference! And no smoke whatsoever either! Was a bit disappointing actually haha. And yes, I did spray it in the right place. I guess since my car sees almost entirely motorway running, there isn't much of a chance for carbon and other gunk to build up like in city driving.

if your mostly nice hot motorway driving you wont build up carbon..

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 PUREBROWN said:
Yes most definately and it doesnt hurt to through some injector cleaner in your tank at the same time

wtf

EDIT: Maybe if you're getting your 89 octane fuel from the tank behind the shearing shed that last got topped off in 2004

Edited by boon
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Yeah I ran some injector cleaner through it a few months back before a long trip. I did an oil change the same time I did the upper cylinder cleaner. I know it shouldn't matter, but it just felt good to give it a wicked service! Upper cylinder cleaner, oil change and filter, new plugs, and with my recently rebuilt front calipers...its like a new car. Still slow though......

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