GCSE grades too low for Oxford?Watch
your grades are 4 A*s 4 As, considering you attended a low performing secondary school, for certain subjects with a less GCSE focused admissions process, you’d be fine! however, ppe is incredibly competitive and therefore focuses on the TSA score and your contextualised GCSE grades.
According to a recent Freedom of Information response, for PPE, the average number of A*s at GCSE is 8 (for those offered an interview) or 8.5 (for those offered a place). Between 24% and 38% of those interviewed had just 5 A*s. The link also describes the relative importance of different components of an application.