Cm871 bad fuel mileage and black oil soon after changing

[Jar90]

(03-27-2022 )Rawze Wrote:  As far as the fuel mileage being low ... and oil turning black prematurely, thare can be a hundred plus things that can cause that. Do a proper oil sample and send it off to a lab. For all anyone knows,
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I figured I'd do oil sample here soon. Highest boost iv seen is 35-38 it doesn't smoke hardly at all the turbo does seem to hesitate a little sometimes when you give it throttle...I wondered about that too if everything was blocked off like it should could it be possible they didn't block intake off its still all hooked up? I'm running t4 rotella oil in it...just had new injectors put in it and overhead ran also new fuel pump