Ive got an 04 6.0 and I have been getting around 13.5-15 in the city. It has a 4" lift and 35s on it. It is bone stock except for a straight pipe exhaust. Is this the best I can do in the city and what can I do to possibly get better.
I got 18 - hand calculated - out of mine on the interstate with just and intake and exhaust. That was before the SCT, EGR Delete, Injectors, and bigger tires.
2003 F250 CC SB FX4
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RCD 190 CC Injectors
SCT XCal w/ RCD Tuning
Autometer GS Series: EGT, Fuel PSI, Trans, Boost
Air Dig II
Bully Dog RFI
Silverline 4 In Turbo Back - No Muffler
No Kitty - Zoodad - High Idle
315/75R16 Cooper Discoverer STT
Pure Diesel Power 8 In Tip
Location: Columbus, GA (soon to be Colorado Springs)
Re: Best 6.0 MPGs
I get high 15's with mixed driving and mid 17's on the highway hand calculated. Stock everything except intake and exhaust. Always keep it below 2g's on the RPM except once a week, usually on friday I stand on it to blow everything out.
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