951Boost

I've searched but couldn't find any info sooo.....could anyone tell me if the 928 Mahle (OC-46) or Porsche oil filters have an anti-drainback valve? I would like to use them on my 951 due to their larger size, but I realize that the 928 mounting is different (no reason oil would drain back when the engine is off) which got me to thinking they probably wouldn't use one.

Thanks in advance,

Jim bailey - 928 International

Correct not like the 951

951Boost

Bummer! Thanks for the info Jim