This chart describes the expected percentage of people who perform the job of Physician-Internal Medicine that make less than that salary. For example 50% of the people who perform the job of Physician-Internal Medicine are expected to make less than the median. Source: HR Reported data as of October 2015.
The average cost for an oil and filter change is between $14 to $28. Labor costs are estimated between $0 to $1 while parts are priced between $14 to $27.
Diesel oil change cost, on the other hand, is somewhere between $50 and $70. If you use synthetics, it will be more expensive. This is because diesel fuel, including oil, is typically more expensive than petroleum. Again, it depends on where you go for the oil change.