Please note: GM dexos R engine oils meet or exceed the performance of GM dexos 2 and GM dexos 1 Gen 2 and Gen 3 oils and are backward compatible, therefore vehicles equipped with gasoline engines that used GM dexos 2, or GM dexos 1 Gen 2 or Gen 3 may use a GM dexos R licensed engine oil of the appropriate viscosity grade at their next oil change.
Licensed dexos®R brands
| Brand Name | Supplier | Specification | Viscosity | License Number |
|---|---|---|---|---|
| Mobil 1 Supercar | ExxonMobil Oil Corporation | dexos™R | 0W-40 | DR40FADA015 |
| Mobil 1 Supercar | ExxonMobil Oil Corporation | dexos™R | 5W-50 | DR40JADH015 |
| Mobil 1 FS | ExxonMobil Oil Corporation | dexos™R | 0W-40 | DR40FAGD817 |
| MOBIL 1 ESP X4 0W40 | ExxonMobil Oil Corporation | dexos™R | 0W-40 | DR40FBGD817 |
| Mobil 1 | ExxonMobil Oil Corporation | dexos™R | 0W-40 | DR40FCGD817 |