Quote:
Originally Posted by woods1110
Good afternoon,
I have a 2007 4Runner V6 with 145K miles. Regular oil changes and the only major repair I’ve done is the alternator.
I was on vacation for a week so my truck hadn’t been cranked for 8 days. When I cranked it today I heard about 3 seconds of knocking noise from the engine. I gave it some gas then turned it off and cranked it again and didn’t hear the noise. I turned it off and cranked it a third time and didn’t hear the noise.
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What filter and specific oil brand are you running? Some filters do a better job of anti-drainback valve design, which reduces the time it takes for the engine to build oil pressure. Also, some oils cling better to the ferrous metal engine components than others.
For example, Toyota filters I've used have been still full of oil on the "dirty" side of the housing after sitting upside down on the drain pan for a week or more...the anti-drainback valve (ADBV) holds oil very well. I've seen other brands that dump out completely under same conditions, the ADBV just doesn't seal and the oil empties past it.
Let us know what you're running.