hi doc DJ long time no post!

I suggest you buy another 1 liter of the HX7 for the engine....

I'm pretty much sure when you check the dipstick in the morning theres a little lack of oil...that is if you've only put 6 liters on the last oil change...because AFAIK the realistic oil requirement of the 2.5 is 6.5 to 7 liters...

HTH...