I worked for Nissan and we always pulled Equifax for NMAC but the dealership would pull TU if the equifax scores were low just to see if the TU was better because we had other banks that used TU only too.
I bought a new Xterra last month and financed through NMAC. They pulled both Trans Union and Experian on me. I thought they would pull EQ but they didn't. I wish they had pulled EQ I would have gotten the 4.8% financing instead of the 6.8% I have. 6.9 % is still pretty cool and I love my Xterra. EdG
