Haven't checked in for a while. Been a loyal PP user for a long time with great UOA's but lately plain ol' PP 5w-30 never seems to be at Walmart. They do have PP HM and a new PP Euro L 5w-30 for Mercedes, BMW, etc. Right now my '08 Explorer Sport Trac has Valvoline Synpower in it since I couldn't find PP the last time. It has 144k on it (still runs like new) so I realize it qualifies for the PP HM but I'm reticent to use a HM oil when I don't have any problems that you typically use HM for. Probably a dumb question, but is it okay to use this PP Euro in my 4.0 SOHC or should I go with the PP HM?