Hello all I own a 05 Dodge Magnum with a 5.7 and 39k on it. I use Mobil 1 5w20 and a mopar filter. It uses about 1 to 1.5 quarts of oil every 1000 miles. Our local dealers service manager told me that Dodge says one quart every 800 miles is ok. What do you guy... Login to read more.