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After a year of listening to engine knock istead of the stereo, I will be having the Ej25 SOHC completely rebuilt next week! My question is this: All the seals will be replaced and obviously that includes head gaskets. Will I still need to use the Subaru Coolant Conditioner after this is done?

Thanks in advance for any imput.

John

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After a year of listening to engine knock istead of the stereo, I will be having the Ej25 SOHC completely rebuilt next week! My question is this: All the seals will be replaced and obviously that includes head gaskets. Will I still need to use the Subaru Coolant Conditioner after this is done?

Thanks in advance for any imput.

John

No. The redesigned headgaskets don't require any conditioner as they're designed correctly.
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