Mazda3 Forums : The #1 Mazda 3 Forum - View Single Post - Oil filter cap failure leads to seized engine
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post #4 of (permalink) Old 02-08-2020, 05:32 PM
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Join Date: Jul 2011
Location: Southern New Hampshire
Posts: 1,203
I'm wondering if the oil cap failure was a symptom and not the actual cause. Just thinking theoretically here, if the PCV became completely clogged, crank case pressure from blowby gasses will seek an alternate route to exit the engine and find the weakest point.

Regardless, given the spotty reliability history of the 2.3 liter engine, there is no way I'd put another one in. Said another way, 2.5 Duratec all the way.

2006 Acura TL 6-Speed Manual
2016 Mazda3 s GT 5-Door 6-Speed Manual
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