[Mercedes] OT Pre-oiler?

[Craig]

On Sat, 20 Dec 2025 17:08:48 -0500 Frederick Moir via Mercedes
<mercedes at okiebenz.com> wrote:

> Is there available a pre-oiler for 2015 Subaru Foresters. One that
> raises the oil pressure 15 to 20 lbs before Start when cold? n.b.
> Filter is mounted upside down, etc. etc.

Does the filter not have a check valve to keep the oil from draining out?


> Wife's Subie rattles at cold start. Using the "clear flood",  and
> waiting for oil light to extinguish, it starts quietly.

"Clear flood"?


Craig