Hi there, so im looking at buying an AUDM cu2 accord with the k24z3 with 131730 miles and everything looks good apart from the fact that the oil was changed every 7500 miles instead of the recommended 6200 miles, starting after the first 620 mile break in service, and there were 2 times where it went 8700 miles and 1 time where it went 9700 miles without an oil change. I was wondering how much of an effect this could have on the longevity and lifespan of the engine? i'm not sure what weight oil they used but here in Australia 5w30, 5w40, 10w30 and 10w40 are permitted