When I bought my Honda Fit 3 years ago, it was advertised to need its oil replaced only once every 10,000 miles (with non-synthetic oil). However the salesman said it should really be replaced every 5000 miles. The oil life meter on the dashboard seems to be calibrated for 10,000 mile intervals.
For the most part, I have tried to maintain a 5000 mile replacement schedule.
For non-synthetic oil, 10,000 miles seems awfully far.
Does anybody know the answer?