Hey Dave, you have a stickshift 190D 2.5T. Me too, and I have enough parts to build another one. I love this combination.

On long highway trips, I have been able to get just slightly over 40mpg with a 5-speed 190D 2.5T and the original 2.65 rearend. This is a very "long legged" setup that you will not use to win many drag races. However, once it's on the highway, you will be sipping the fuel.

SteveM.

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'93 190E/D 2.5 Turbodiesel 5-speed (daily driver)
'87 190D 2.5 Turbo rustbucket - parts car
'84 Dodge Rampage diesel - Land Speed Record Holder
'13 Ram 2500 Diesel
'05 Toyota 4Runner