Say you are considering Pennzoil Euro L synthetic 5W30 oil (which contains ashless organic friction modifiers ) in a GDI engine : Do you see any advantage to using such a syn oil in a GDI engine application here with USA gasoline (i.e. soot reduction , better deposit control, etc. ?) While not a long drain oil I do like the HTHS of approx 3.5 this 5W30 Dexos 2 oil has to offer (as long as engine cleaning / and protection are up to par) ...*Your thoughts on using in a GDI engine with USA gasoline ?