STJLR.03.5005 and the Ford Spec align with ACEA C1 - Low(est) SAPS and HTHS > 2.9, SAE 5w-30
ACEA C2 does not exceed this spec however ACEA C2 formulations can be approved. ACEA C2 allows for higher SA and HTHS so not all ACEA C2 oils will meet the requirements. If it's under warranty, be sure...