I solved it.
I unloaded my FPP tune, went back to stock. Drove it around for better part of an hour, came home, reloaded FPP tune. Drove it for another hour - mostly using ACC cruise. MPG is now back to 17.4mpg at avg 70mph.
To recap
Drove to California - 800 miles - empty truck 17.6...
I think so. Last year I got caught by that. But that 1. flips over in Sept and it's Dec now. And 2. This change - the muffler upgrade - happened mid tank.
I think if you read through my post and responses you'll see I literally laid out the controls and the conditions. I can draw a direct line between changing the exhaust, and the drastic reduction in milage. There is no other factor. You are the first, in that sentence, to provide some...
And for record, I don't like the louder exhaust. I'm definitely not stomping on it to hear it. I come from poor people. When you're poor, all your mufflers are loud because you can't afford to to anything with them but let them rust out. I don't like the louder tone, and I'm not going for...
Noted. Yeah, I'm as surprised as anyone. I'm not really stomping on it. The factory muffler started leaking so I replaced it with one that was better performing. I mean, maybe it does spool up a bit faster, if so I can't tell. I punch in the ACC as soon as I'm able and ride it out.
I think...
What do you want, the bloody fuel logs? The FPP tune, the lift, the 33in tires have already on there for upwards of a year. Was getting 17.6 mpg pretty steadily.
I put the camper on. Drove 1000 miles with ACC cruise on the the lions share. Mpg dropped to 16.6. Okay. No surprises
I put...
My Vagabond Drifter camper finally arrived.
Also installed 1in BDS leaf shackles to bring the butt up a bit. I have not yet done a build-out of the back, still a little unclear what we're going to do. These are initial shots.
Solved: https://www.ranger5g.com/forum/threads/big-mpg-hit-after-mbrp-exhaust-install-looking-at-new-tune.17016/post-347426
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I just installed a MBRP exhaust and my MPG dropped from 16.6 to 14.6 - which I have a problem with. I have the FPP tune and have had it for 12+ months or so and I...
Closing the loop on this, adjusting that ring for height adjustment proved unnecessary. The shocks already come ready to go. All the lift I was looking for came preconfigured.
But yes, the only way to get more height is to preload that spring even harder.