The transfer case is mechanical, has two gears
Gear ratio of first gear 2.08, second gear 1.0
Oil is used to lubricate the engine; specified in the lubrication chart.
Check the oil level in the crankcase using the dipstick, which has three marks on it:
Prolonged operation of the engine with incorrect clearances can lead to premature wear of valve mechanism parts - burning of valves, wear of rocker arms, bearing surfaces of pushers and camshaft cams.