"Jan Fure" > wrote in message
oups.com...
> Since I filled my 1991, 750iL with Mobil 1, 0W-40, the low oil level
> alarm has started going off when the (overnight) dipstick level is 1/4
> of the way down from the high mark.
>
> I have heard that synthetic oil "clings to the surfaces", and thus
> takes longer time draining to the oil pan compared to conventional oil,
> and this seems like a confirmation of that. It probably takes 6 hours
> to get a repeatable oil level reading, prior to that, the level slowly
> increases.
>
> Has anybody else seen this, and if it is true that synthetic oil drains
> down slower, would the optimal oil level be higher than for
> conventional oil, or would the risk of overpressure exist during
> startup?
>

I think you read too much science fiction.

Huw