2.7EcoBoost
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I was briefly a member (after years of visting the site) of a well know oil/filter forum, I will not mention it's name. But, people post cut open filters, oil analysis and most of all, fan boy opinions of "their" brand. Anyhow, there was an insightful (I thought) thread about a Mazda 6 having catastrophic engine failure due to a name brand aftermarket oil filter failing. The thread was locked, actually 2 threads on the subject because the site is extremely biased to the filter brand in question. Anyhow, I personally know of a lady in my neighborhood who had a Chevy Cruze engine failure (about 1 or 2 years ago). The dealer diagnosed it as an oil filter failure causing the engine to seize. The lady had receipts of the filter being the applicable filter (Napa/ Wix) and the garage who changed the oil. She took her receipts to Napa who told her "It's GM's problem, the filter we sold you was correct and it meets or exceeds OEM specs". I don't know the rest of her story, how the filter failed etc., but I do believe she stopped fighting, traded the car in on another brand and said she'd never by another GM or another part from Napa. I personally think Napa/Wix are some of the best filters out there, but I see her point, I'd do the same. So in the Mazda example (I'll post link at end), the Silicon Anti-drain back valve ended up in the engine and restricted oil flow causing internal damage. Her case is ongoing, but as I said, the forum locked the thread due to brand loyalty. So.....my point is, I am guilty of using aftermarket oil filters, and in the case of my Ranger, not the proper Motorcraft as I have used a 400S starting with my second oil change. I am not sure what Ford's position would be on a warranty claim with a 400. I am sure it would end up a headache for me. I use Napa equivalent filters on my second car that also calls for the 910S. Going forward, I think I'll run MC 910s on both until the 5/60K powertrain expires. In reality, the 400s would only be beneficial for extended oil changes, and I do 5k religously anyhow. As to why I bought the Napa's? I don't think they are any better than the MC, they were just on sale so I bought them. Just wanted to share.
Mazda 6 Engine Failure/bad oil filter
Mazda 6 Engine Failure/bad oil filter
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