Bad MPG after mods
#1
Bad MPG after mods
My gas mileage has dropped significantly from 15-16mpg to just over 13 mpg after a Flowmaster 40 series catback install and tire swap to Firestone Destination M/T's(from Wrangler ST's). I added a K&N FIPK to the 5.3 which brought me to high 11's in gas mileage. This is pretty ridiculous. I thought the mods would help gas mileage. The only one that I thought would drop it was the tires. Is this much normal?
#5
RE: Bad MPG after mods
Thats a good question...
We'll re-cal it free for a good customer...maybe charge a tad otherwise....around $27.50..
A modern tire store SHOULD be able to change it...but most can not.About all you can do is see what your dealer will charge.Let me know!
We'll re-cal it free for a good customer...maybe charge a tad otherwise....around $27.50..
A modern tire store SHOULD be able to change it...but most can not.About all you can do is see what your dealer will charge.Let me know!
#6
RE: Bad MPG after mods
Hunt, if you decide to go with a Superchip Flashpaq as I did, you can adjust the speedo to the size of tire you have. It is very simple and it works. I had a cop on my base clock me to see if it was correct and it was right on point.
#8
RE: Bad MPG after mods
Smoke I wasn't implying that he buys a Flashpaq for the sole purpose of adjusting his speedo. I was simply saying that if got the Flashpaq for "performance" the calibration setting is just an added bonus.