synthetic gas or natural gas replacement for oil change for a FIAT. what is a fair price for an oil change at 40,000 and what is a good maintenance schedule. thanks The Smith Family

Fiat recommends replacing/changing the engine oil very 6,000 miles. You can use semi-synthetic or synthetic 5W-30 engine oil. Price should range from a low of $45 to a high of $90, depending on type of oil.