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Re: To Kreen or not to Kreen?... [Re: DallasTexas] #5082432 04/22/19 07:16 AM
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Originally Posted by DallasTexas
I have used Kreen on my Mercedes with almost 300k miles, not only did it clean up the engine but my morning injector knock was gone. Now I use 2 oz Kreen on my Mercedes CDI every time I fill up. IMHO it is the best product out there.

Kreen is very effective but also very harsh on old oil seals like Berryman, so let see how long it can take before leaking

Re: To Kreen or not to Kreen?... [Re: oilmaven] #5105959 05/15/19 11:57 AM
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ad244 Offline
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Any updates op?

Re: To Kreen or not to Kreen?... [Re: kr_bitog] #5133290 06/13/19 03:17 PM
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SubieRubyRoo Offline
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Originally Posted by kr_bitog
Kreen is very effective but also very harsh on old oil seals like Berryman, so let see how long it can take before leaking


I’ve used Kreen at least once on 4 different cars I own, with the oldest one at 224k getting 2 thousand-mile bouts with Kreen. The other vehicles had 180k, 147k, and 121k. Not one of them leaked after a Kreen treatment.

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