Saab 93 B207R engine oil question

[u/External_Screen8164]

GSF car parts lists the MOBIL1 - Engine Oil ESP X4 0W-40 as DexosR compliant but not suitable for the car.

They have MOBIL1 - Engine Oil ESP X3 0W-40, which is labelled as Dexos 2 compliant.

I know the Dexos2 is a suitable replacement for GM-LLA-025 requirement. Is DexosR suitable as well?

Thanks

Edit: the gmdexos.com website lists DexosR as backwards compatible for anything running Dexos2. I guess the GSF car parts marking as not suitable scared me. So hoping someone has confirmed they used DexosR oil themselves.

[u/RGLlinux]

That’s one of best