Which reporting agency to car dealers usually use?

[SecondToLastDraftDodger]

I ask because the there's a difference in auto scores. EXP and EQ socre me at just a bit over 700 and TU scores me at almost 800 (TU includes an old closed account the EXP and EQ don't, giving me a significantly longer credit history on the TU score).

It seems I read once that car dealers will take whichever score is highest. Obviously, I would like the TU to be the score they use. Is there any way to ensure this? Or is it just luck of the draw?

[FireMedic1]

https://ficoforums.myfico.com/t5/Auto-Loans/Auto-Loan-Approvals/td-p/6573136 

[Brian_Earl_Spilner]

It depends on the lender. Credit Unions like to use EQ, but can use others, for example. So my pre-approval with NFCU was a EQ pull. I ended up financing with LFS and they pulled all my scores and financed me using the highest score. I did, however, tell the dealer to not shotgun me since I already had 2 approvals and my reports were frozen. They felt they could beat my rates with captive financing and I thawed them for a single pull. They were right.