Hi, I'm doing alot of very short trips(blocks not miles)and with only 3-4K miles/yr,I plan to change the 5W-20 oil('03 Focus SE)at 4-months and the filter at 8-months.The filter change is no fun on the Focus.
quote: Originally posted by Pablo: I say just change it when you change your oil. Maybe I'm paranoid but I just hate leaving that used oil in the filter.
i now do an oil filter change every other oil change, or 15,000 miles.
the last filter i cut open had 7500 miles on it and looked like new inside. there was no crud in it. and besides my car manf says to change it ever 15K anyways.
Patman - I know what you saying (writing), and I'm not saying that it will necessarily harm anything to leave that oil in there....but I just believe WHEN you do decide to change oil...change ALL the oil.