I removed the oil filter the other day after the engine hadn't been started
since about October and found the oil filter empty. I thought I had redundant
features to prevent oil drainback but apparently neither one are effective. I
have the anti-drainback tube and a supposed good anti-drainback valve built
into the oil filter, which is a Purolator Pure One. Is anyone else
experiencing the same thing after winter dormancy? Is it necessary to use a
sealant on the anti-drainback tube?
Thanks for any feedback.
Gary
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