Always a pleasure to advance the american English.
PD unfortunately does nothing for such a pushrod in -15°C, not even when the winter rating would be correct for -25°C or lower. Maybe you missed the latest PD sessions on here. Individual PD elements for each of course might do – six pushrods, six plungers. I guess I called that positive displacement distribution recently to advance the american English.
Being forced through the system doesn't necessarily mean through much of the system. Think of a strokes and coronaries ;-)
https://www.jstor.org/stable/44745985 The oils used @ -15°C measured: Pressures these days can be capped throughout the entire operating range briskoda.net/forums/topic/438545-low-oil-pressure/?do=findComment&comment=4932439...