ihaveemerged
New member
About 10 months ago I purchased a 2014 Jeep JKU with 90,000km on it. Right away I noticed I was only getting anywhere from 360-380km per tank of gas no matter what I did with my driving habits. It didn’t make a difference if I manually shifted (auto trans) to gear up at a lower RPM or left it in full auto. My driving week to week is usually the same route day in and day out so no significant changes in roads or condition.
A few months ago I installed a MagnaFlow axle back 15160 Large Stainless Steel Performance Exhaust. I didn’t do anything with the Jeeps computer just installed the muffler and went on with my day. I mainly purchased it for the look and sound (doesn’t sound as nice as I would like but it’s better than stock) but didn’t expect much “performance” improvement from it. A couple months after installation I started to notice my gas mileage improving with each fill up. At this point I have gone from 360km per tank to 440-460km per tank!
I find it hard to believe that replacing the muffler would make this much of an improvement in gas millage but there is nothing else that is different in regards to the Jeep or my driving habits. Is it possible that the CPU has over time recalibrated based on more airflow and somehow improved my mileage? Curious to get other people’s thoughts.
Sent from my iPhone using WAYALIFE mobile app
A few months ago I installed a MagnaFlow axle back 15160 Large Stainless Steel Performance Exhaust. I didn’t do anything with the Jeeps computer just installed the muffler and went on with my day. I mainly purchased it for the look and sound (doesn’t sound as nice as I would like but it’s better than stock) but didn’t expect much “performance” improvement from it. A couple months after installation I started to notice my gas mileage improving with each fill up. At this point I have gone from 360km per tank to 440-460km per tank!
I find it hard to believe that replacing the muffler would make this much of an improvement in gas millage but there is nothing else that is different in regards to the Jeep or my driving habits. Is it possible that the CPU has over time recalibrated based on more airflow and somehow improved my mileage? Curious to get other people’s thoughts.
Sent from my iPhone using WAYALIFE mobile app