[bkreigsr]

In the latest blurb from Blackstone - they recommend dropping the oil cold - without warming it up.

I've always warmed it up to operating temp prior to dropping, theorizing that all the dirty bits will be re-introduced into the warm oil, and present a representative sample of all the oil in the crankcase.

Blackstone recommends a cold drop, theorizing (I guess) that the dirty bits have settled to the bottom of the crankcase and will be incorporated as the cold oil flows over / around it.

I'm about to change the oil in my 912E today, and am wondering if I should change my 60-year tradition of a warm-up prior to dropping.

What sez the brain trust of oil experts on the board?

Thanks in advance.

Bill K