In the past year that I've owned this truck I only saw the message once. I'm probably just missing it. Honestly, my truck doesn't seem to use much DEF. I filled it up two oil changes ago and it's just now below a half tank. So in about 7000 miles it's used about a half tank of DEF. But I'm not currently towing anything either. Just rural 55 to 70 mph driving with a little city driving.
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2010 FZ 405
2011 F350 6.7 Dually w/Banks Power making 510 hp and 1065 ft/lbs torque
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