Because from what I've heard in some vids, stuff like Lucas injector cleaner and others, won't work because it's direct port injection. So it can't help clean up the gunk from the pcv valve dumping oil into the manifold.
2015 sierra Denali
_Nguyen
Because from what I've heard in some vids, stuff like Lucas injector cleaner and others, won't work because it's direct port injection. So it can't help clean up the gunk from the pcv valve dumping oil into the manifold.
2015 sierra Denali
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