Gary,
I get the same thing and it also occurs within 30 minutes or so in the summer
when the engine is very hot (and oil thins out).
Since drainback also occurs through/by the pump lobes (depending on
clearances), I don't know if sealing the drainback tube would make much of a
difference. I bit of permatex presumably couldn't hurt unless it started
floating free in smaller oil passages.
- Bob Mann
Gary Boone wrote:
> 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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