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Dumb question about oil filter inside

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Old 03-26-15, 02:21 PM
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Dumb question about oil filter inside

Apologize for even asking this, but I've never had a car with the oil filter on top of the engine facing down. If I unscrew and remove the filter without having drained the oil from the engine, would it make a huge mess or will gravity have done its thing and the filter will be basically empty?

I need to install a pedestal sandwich sensor mount and I'm wondering if I need to do it during an oil change.
Old 03-26-15, 02:38 PM
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brapbrapbrap

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There will still be some leftover oil in it, depends on how long you let the car sit.

Just put a rag below it to catch any that drips out.
Old 03-26-15, 03:09 PM
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gross polluter

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I don't run the engine at all on my rotaries before changing oil/filter. Let the filter drain over night, and keep a rag handy.
Old 03-26-15, 03:33 PM
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On my FB I punch a hole in the top with a center punch and let it sit for a couple minutes. Works every time.
Old 03-26-15, 08:53 PM
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^ Exactly.

/thread
Old 03-27-15, 09:25 AM
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The filters have an anti-drain back valve in them. This will hold some oil in the filter once oil has stopped flowing. With that, there won't be a huge mess when you take it off but there will be some oil dripping just from the nature of oil.
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