Patman
Staff member
This could get quite confusing, as I now noticed that Mobil 1 has a second version of ESP 5w30 out. The original one (which I'm using in my Corvette) is called ESP Formula 5w30, while the new one is just called ESP 5w30. Not sure why they felt the need to add this second version. The original ESP Formula 5w30 looks to have the better specs and has more builder approvals for it too.
https://mobiloil.com/en/motor-oils/mobil-1/mobil-1-esp
https://mobiloil.com/en/motor-oils/mobil-1/mobil-1-esp