My daughter has an 07 s80, 3.2 liter and is a royal pita to service and I dread every oil change. I've never done an analysis and really don't want to, yet I get that's the only way to tell how long she can go between changes. I've been doing 10-15k on liqui moly but have ran out and scored some crazy good deals on oil lately and wanted an opinion of which oil I should use and recommended length I can go. I'm not an extended drain kind of guy but being a non turbo with a huge sump I feel you can. The car takes over 8 quarts and uses a canister filter, which I use Mann filters. On hand I have these oils.
PP 5-30 HM
Valvoline 0-40, not the European oil
PP 10-30
Mobil 10-30 HM synthetic
The car uses no oil and no drips or leaks and has just over 100k.
PP 5-30 HM
Valvoline 0-40, not the European oil
PP 10-30
Mobil 10-30 HM synthetic
The car uses no oil and no drips or leaks and has just over 100k.