What does gm pay for warranty oil changes?

Ok so we are a stand alone Cadillac dealer. My question is when working on other makes, like say a Chevy Tahoe for an oil change
My warranty clerk called down and said GM only pays $35 for an oil change for Chevy's. Can anyone comment on if this is correct or send me in the direction of where I can learn to see what GM pays us back for warranty oil changes. Thanks for any help.
My warranty clerk called down and said GM only pays $35 for an oil change for Chevy's. Can anyone comment on if this is correct or send me in the direction of where I can learn to see what GM pays us back for warranty oil changes. Thanks for any help.