Does old oil affect gas mileage
25 Dec 2019 Excessive fuel consumption can be caused by a number of different things. yourself with the more common causes of poor fuel economy; is a smart way Dirty Fuel Injectors; Low Compression; Wrong Oil Viscosity; Dirty Air 10 Aug 2017 If it just seems like your car is running louder than it used to, but there aren't other strange This will improve your drive and your gas mileage. If the oil level is too low, you can cause significant damage to the engine. So the basic answer to the question does oil change affect performance is pretty easy. Old oil will reduce engine performance, lower its horsepower, reduce its mileage and eventually shorten its life. Be sure to get your oil change in accordance with the recommendations of your vehicle owner's manual. You may be interested in these other posts