I seem to have gained a bit over 2 MPG with my VGT. I believe this is due to lower turbine inlet (back) pressure when cruising.
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1979 240D- 316K miles - VGT Turbo, Intercooler, Stick Shift, Many Other Mods - Daily Driver
1982 300SD - 232K miles - Wife's Daily Driver
1986 560SL - Wife's red speed machine
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