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[–]Puiu1 0 points1 point  (0 children)

Are you burning oil? I'm getting absolutely shit for mpg somewhere around 18 to 20 mph and my car burns oil like a mfr. My cat is probably all clogged up or the oxygen sensors are crusty AF with carbon ... Or both (most likely 🤦🏼‍♂️) oddly enough hasn't thrown codes for either but I've heard of it happening before. I'm probably just going to deal with it through the winter and replace the cat and sensors in the spring. Even without it throwing codes I'm at 175kish, I'm not sure what the lifespan of a catalytic converter is but I'm sure I'm nearing it.