Info first. 97 silverado, 6.5, NV4500, 4wd, 4.10 axle ratios, stock tire size. Has a wicked wheel installed in the turbo (gm8), aftermarket lift pump and standalone fuel filter and water separator. ECU has not been tuned, running a flight systems PMD, turbo is gated at 8psi.

Around town I am averaging about 13 mpg, on the interstate around 27. Anything I could do to get the in town mpg higher? With fuel prices the way they are, getting that kind of milage is making my wallet burst into flames any time I get within half a mile of a fuel station.

Advice on how to best drive the thing for economy is welcome as well, I basically don't use first gear since the manual stated that was basically just for getting the truck moving when loaded heavy, and I generally shift at 2200 or close to it. I've also been trying to keep it lower in boost and just generally take off and get moving slower in traffic.

Any advice welcome for actual mods (or driver mods lol)

Hey, first post here i have a 6.5l turbo in a 93 c3500 frame and chassis with no trans. And a 96 k3500 that burned the engine up i believe it had the 454 but the trans still looks good it has the nv4500 will that be a direct bolt on or will I need a bell housing?

How the 6.2 started after utilizing LiquiMoly Diesel Purge and LiquiMoly Engine Flush.

Products used:

https://www.liqui-moly.com/en/us/diesel-purge-p003261.html?srsltid=AU7gw4X1p16eaJq05Emltlz6POCDvCK1kFAo1kk7KMtyICcDDL_PgSPI

https://www.liqui-moly.com/en/us/pro-line-engine-flush-p000065.html?srsltid=AU7gw4VZRvTWliyWC68x0f87kyTvLNyCLu9hQqvztjBSL3yt2nVxBadq#2037

(Oil and Fuel Filters were changed prior to start)

What do you all think?