Silverado fuel consumption

[mrprofessor12]

filled my 2011 chevy silverado crew cab 1500 z71 up yesterday and i'm just wondering coz half of it is gone already and i only drove it for about a total of 40mins give or take. and it indicated that i did 13mpg. is that normal? btw, i dont drive too fast or too slow. thank you in advance.

 

[EasterEggHunter77]

Yeah, 13 mpg isn't surprising for that 2011 Z71, especially if a lot of that 40 mins was idling or stop-and-go driving. Actually, GM's Vortec 5.3L engines from that era are known for burning through fuel pretty fast under certain conditions. The Active Fuel Management (AFM) system, which was supposed to improve mileage by shutting down cylinders, can be hit or miss. If yours is still running AFM, it might be deactivating less efficiently due to age or carbon buildup ... common issue with these engines.
Might wanna check for things like a dirty MAF sensor, weak O2 sensors, or even low tire pressure ...all of those can quietly drag your mpg down. Silverado tanks are big too, so losing half a tank might just feel worse than it actually is.

 

[terrestialbeing]

just 40 minutes of driving ?, wow, its quite much. could be a mix of factors, maybe short trips, idling, winter fuel blend, or even a fuel system issue like a bad O2 sensor. Might be worth tracking it over a full tank to see if it evens out.

 

[JohnConstantine]

that consumption is not unusual for a truck that size. it is designed for off-road capability and sometimes that means bigger fuel consumption. Also, if you've stuck in a traffic than there's another thing that affects your fuel economy. so yeah, it's not unusual

 

[OffroadBeast]

filled my 2011 chevy silverado crew cab 1500 z71 up yesterday and i'm just wondering coz half of it is gone already and i only drove it for about a total of 40mins give or take. and it indicated that i did 13mpg. is that normal? btw, i dont drive too fast or too slow. thank you in advance.

Getting around 13 MPG isn't really surprising for your 2011 Silverado, especialy if you're mostly driving in the city. The gauge dropping fast could be linked to short trips or idling. If everything else seems fine, you might want to take a look at your air filter, tire pressure, and oil levels. If the problem persists, it might be a good idea to have it checked out. Just let me know if you need help with anythin else