R
ROR
Guest
I have a 2017 Grand Sport which just had its 1st oil change and filter at 384 miles. I requested that the dealer use Mobil 1, Extended Performance 5-30; they did so but reluctantly as I was informed that GM specifies use of dexos oil. First I have ever heard of dexos1 oil required - the svc rep went so far as to state that the warranty would not be good if I used Mobil 1. Just checked the facts sheets on Mobil 1 and it states that Mobil 1 has the following builder approvals, GM dexos 1, license #........
Have I just thrashed my warranty?? There is a Mobil 1 logo by the oil input and the owners manual actually recommends Mobil 1 if the vehicle is being used under race and/or track conditions!!! Seems to me that Mobil 1 is better than dexos1!
Any clarifications on this would be appreciated - thanks!
Have I just thrashed my warranty?? There is a Mobil 1 logo by the oil input and the owners manual actually recommends Mobil 1 if the vehicle is being used under race and/or track conditions!!! Seems to me that Mobil 1 is better than dexos1!
Any clarifications on this would be appreciated - thanks!