On a cold start (operating temp not ambient temp) is there any substantial difference in the thickness of oil remaining on internal components between say a 5w30 and a 0w20?
Reason being, LS motors are known to sometimes exhibit a cold start lifter tick. My engine, the AFM L76 is especially prone to it, which causes mass panic considering extended cold start ticking can be indications of the beginning of lifter failure (a somewhat common problem). Many will state that owners should go with a lighter weight oil so that it gets to the lifters faster (the tick is more likely to appear in colder weather). On the other side of the fence many claim a thicker oil will provide more protection until pressure builds.
For arguments sake lets keep "cold" to be north american average temps, call it no lower than 0 degrees F.
My personal experience, my current run of 10w30 PU has yet to tick (remote start, I use it obsessively) when based upon my previous OCI of 5w30 PP I would have expected to hear it at least occasionally by now. Granted, the weather has not been below the 30's yet. Current filter is a Fram ultra, previous was a Wix, for those who wish to argue the ADB side of things.
Reason being, LS motors are known to sometimes exhibit a cold start lifter tick. My engine, the AFM L76 is especially prone to it, which causes mass panic considering extended cold start ticking can be indications of the beginning of lifter failure (a somewhat common problem). Many will state that owners should go with a lighter weight oil so that it gets to the lifters faster (the tick is more likely to appear in colder weather). On the other side of the fence many claim a thicker oil will provide more protection until pressure builds.
For arguments sake lets keep "cold" to be north american average temps, call it no lower than 0 degrees F.
My personal experience, my current run of 10w30 PU has yet to tick (remote start, I use it obsessively) when based upon my previous OCI of 5w30 PP I would have expected to hear it at least occasionally by now. Granted, the weather has not been below the 30's yet. Current filter is a Fram ultra, previous was a Wix, for those who wish to argue the ADB side of things.