With their recent tie-up with Hendrick Motorsports, and Hendrick's close association with GM, and as many had guessed, Valvoline has now joined the dexos approved list with both SynPower 5W-30 and 5W-20 on the official list.
Official dexos 1 list
I didn't see it at first, but it is under the "S" for SynPower, not the "V" for Valvoline. With this the majors (Mobil, SOPUS, Ashland, Conoco, & BP) are now all on board with dexos, so, as supposed, Rick Hendrick's Certified GM service will be using dexos approved oil in GM vehicles.
Official dexos 1 list
I didn't see it at first, but it is under the "S" for SynPower, not the "V" for Valvoline. With this the majors (Mobil, SOPUS, Ashland, Conoco, & BP) are now all on board with dexos, so, as supposed, Rick Hendrick's Certified GM service will be using dexos approved oil in GM vehicles.
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