Engine Problem
 

Have an issue that has been goin on for a month now. I need help because myself and others cant seem to figure it out. I have a 90 ranger. I am losing horse power bad and therefore losing gas mileage. Went from 15 to 10. I am also losing antifreeze. I have replaced the radiator and checked all hoses, replaced heater core and the head gasket was replaced about 6 months ago. I recently drained all oil out and left plug out. Left a clean jug under oil pan for 2 days and did not see where any antifreeze had leaked out oil pan. I did notice the oil I drained was a little milky (not bad really) and smelled somewhat like gas. Does anyone know what is wrong and how to fix? Thanks

to me it sounds like the heads may need to be looked over. could be leaking fuel threw your intake or exhaust ports which would cause the lose in power and fuel mileage. The antifreeze could be from headgasket or a cracked head. Id see if you could borrow or rent a coolent system pressure tester and see if you have a leak. This will give you an idea if you have headgasket or the heads need some attention.