I wonder if this LM oil is fully synthetic, or is it a Group 3 base stock oil.
Edit: the German language spec sheet does not state that this is a fully synthetic oil!! This is the google translation:
"Modern, top-class, smooth-running motor oil for the year-round use in petrol and Diesel engines without a diesel particulate filter (DPF). The Combination of unconventional base oils Synthesis technology with the latest Additive technology guarantee an engine oil that
Reduces oil and fuel consumption and for a rapid oiling of the engine. Depending onOil change intervals can be specified by the manufacturer of up to 40,000 km."
Here's the US spec sheet: "Top class fully synthetic, all-season motor oil for superior performance and long engine life. For gasoline and diesel vehicles without particulate filters (GPF/DPF). Exceeds strict test requirements specified by major manufacturers. Safe with catalytic converters and turbochargers. Use with extended oil change intervals as per manufacturer."
As you may know it's illegal in Germany to state that an oil is "synthetic" when it's a group 3 base stock. It is ok in the US to state that it's "synthetic" when it's a group 3 base stock. Years ago Mobil was sued in a US court because it claimed that Mobil 1 was synthetic even though it's a group 3 base stock that had been hydrocracked and the resulting polymers "re-assembled" into a "synthetic" oil. Mobil won the court case. However, a similar suit in a German court ended with the ruling that Mobil's process to create a "synthetic" oil does not result in a truly synthetic oil.
Ruling: this LM is not a true synthetic oil in the German sense of the phrase!