Probably not. Shift points are controlled by rack position. The deeper you are in to the accelerator, the higher the shift point. Cold diesels have substantially less horsepower than warm diesels, meaning you have to push the accelerator harder to get the same speed, hence the shift points move upward with a cold engine. You could adjust the bowden cable to bring the shift points down but that would bring them down lower on a warm engine.

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1977 300d 70k--sold 08
1985 300TD 185k+
1984 307d 126k--sold 8/03
1985 409d 65k--sold 06
1984 300SD 315k--daughter's car
1979 300SD 122k--sold 2/11
1999 Fuso FG Expedition Camper
1993 GMC Sierra 6.5 TD 4x4
1982 Bluebird Wanderlodge CAT 3208--Sold 2/13