Allison Man (or anyone who knows): I have 95 Beager MH with 6 speed cummins MD3060 and 300 engine. When I press the arrow buttons on the shifter panel the display reads "d1". Does that mean I do not have the Oil Level Sensor or what??? Also noticed oil on bottom of transmission case arount the two round bolt on flanges. No oil on sides of transmission just on bottom. Is this just a leaky gasket? Will re-torqueing solve the problem or what do you suggest?? Manual oil check looks ok but I'm just a novice on this, especially am confuesd when I see posts about temperature too low to reliably check oil levels.