Reply to "Pre-filling oil filters?"

tallpaulMember

quote:
Originally posted by Wiley:
Some engine manufactors and people recommend pre-filling an engine oil filter with oil to prevent a "dry" start up. I personally feel that the risk of contaminates entering the system is of greater concern than a short period of no oil pressure till the filter fills.
What's the consensus of the experts?

Will any more contaminants enter the system this way than from pouring new oil into the oil filler opening? I realize the oil filler opening does not go to all the bearings but just drains to the sump, but I would think oil filters routinely (cold starts) run in bypass mode and so any contaminants would get into the system anyway. Also I would hope fresh oil in a sealed bottle would have minimal contaminants.

9/12/049:49 PM

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