Hi,
don't know if Motul 300V Competition is available in the US. It's a synthetic ester based oil. You have to change it minimum yearly. It has a very high HTHS.
There are a lot of guys in Germany that track their Porsches with that oil.
There are different blends and viscosities. Please check yourself:
https://www.motul.com/de/en/products/oils-lubricants?f[application]=140&f[range]=25
Technical data sheet Motul 300V 15W50 Competition:
https://www.motul.com/system/product_descriptions/technical_data_sheets/51780/original/300V%20Competition%2015W-50%20%28GB%29.pdf?1329125523
Regards, Markus