2011 GMC Sierra 1500 SLT Z71 All Terrain
62k miles at 6k OCI
Out: Valvoline Full Synthetic with Max Life 5W-30
Valvoline V0-88 Filter
In: Castrol GTX Magnatec Full Synthetic 5W-30 D1G2
Fram Ultra Synthetic Filter
Going to send the new D1G2 Magnatec 5W-30 to Blackstone at next OCI.
