Clayton Cummins

Yup. that's basically what I was doing. Lifetime MPG average on Trip A... I reset Trip B when I put on Toyo R/T 295/70R17s to see how much the fuel economy changed... (.8 MPG BTW)

It showed the total vehicle mileage until the reset a week ago...

Ok, random issue. I noticed over the last week my Trip A Odometer is resetting the mileage itself. I think this has happened twice. I had never reset the Trip A (roughly 63, 000 miles on the truck), and use the Trip B for tire rotation scheduling (I'm lazy). Just the Trip A, and just the mileage, not the MPG reading. If you manually reset it, don't both the mileage and MPG reset? 2015 GMC Sierra 1500. Any ideas?

Looking to do a Flowmaster (thinking Delta 40) on my truck. Did a search and looked through the forum, but didn't see the info I was looking for. Truck is a 2015 Sierra Crew 4x4 1500 5.3 short bed. The stock muffler is center in, but I'm wondering what the out offset is. Also, anyone have this truck with the Delta 40? Thoughts? I had a 50 performance on my last truck, but I was thinking of going a little louder, different. Thanks in advance people.