Vig, the MN6 gear ratios are:
1st 2.66
2nd 1.78
3rd 1.30
4th 1.00
5th .74
6th .50

As for that data readout slot, it is the Berries: I can easily scroll
through a series of menus that detail diff aspects of specific items
within that category;
that oil reading is from the
-"gauges" category which can also show:
oil press., oil temp, coolant temp, front L&R tire press, rear L&R tp,
and batt. volts.
-the "fuel" cat. shows: avg mpg, inst. mpg, range at current speed/usage
-the "trip" cat. shows: Trip odo 1, Trip odo 2, regular odo, trip time, average speed, and "oil life" as a "percentage left".

The are all easily accessible by fingertip and feel and flipped through or,
left at any given data reading.

The HUD, shows rpms, speed, and one other chosen engine data reading.
Pretty well done for a Chebby, imo.
BR,mD