Quote:
Originally Posted by Daman858
If you really want to get all the old oil out, get a Mityvac and it will suck all that stuff out through the dip stick hole.
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That's not going to be one bit more effective than removing the drain plug. And it most certainly won't suck the oil out of the oil cooler.
Quote:
Originally Posted by Daman858
They use it on boat engines.
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Usually because the oil drain plug isn't readily accessible, not because it's otherwise more effective.