nOt sure about the interchanges but service stations, okay let me try to recall.
Leaving from lahore,
- Sukheki, approx 90kms from Toll Plaza
- Sial Chowk. Approx 130 kms from toll plaza
- Bhera 190 odd kms from toll plaza
- Kallar Kahar 230kms i guess
- Chakri 310 kms i believe
I am sure accurate info is available somewhere on this website.