Replacement Interval:every 30,000 miles or 2-years as part of Infiniti Premium schedule. Schedule 1 and Schedule 2 services do not include this important fluid in any of their intervals, so it should be added a-la-carte if following Schedule 1 or 2 program. Beshoff uses qualityCastrol EPX 80W-90 oil for differential fill which meets all manufacturer specifications. The
differential contains gears which connect your car's two axles. It
consists of a drive pinion and ring gear to permit the rotation of two
shafts at different speeds. Differential gears are part of the
rear-axle assembly. All wheel drive (AWD) and 4WD also have a differential on
the front axle. Differentials are used to convert the lengthwise flow
of power from the engine through the clutches, transmissions, and
propeller shafts into a right-angle direction. This change allows the
engine power to turn the rear wheels (four wheel drive is used in some
designs) and permits the wheels to move at different speeds, as when
turning a corner.
The
differential gears are lubricated in differential fluid to lubricate
gear surfaces to prevent friction and wear. Normal driving subjects the
fluid to high temperatures which eventually break down the fluid. The
result is metal to metal contact and extremely high heat that
eventually prevents gears from turning the car's wheels. Correct
fluid levels will reduce friction and wear and reduce shock and
vibration.
Transfer Case Fluid (AWD & 4WD only)
All-wheel drive and 4-wheel drive Infiniti's are identified with and 'X' in the model name
(e.g. G37X, QX56). Rear wheel drive models do not have a transfer
case.
Replacement Interval:every 30,000 miles or 2-years as part of Infiniti
Premium schedule. Schedule 1 and Schedule 2 services do not include
this important fluid in any of their intervals, so it should be added
a-la-carte if following Schedule 1 or 2 program.
The Transfer Case splits drive line power to front and
rear differentials. Transfer Case fluid lubricates and removes heat
from internal components in the Transfer Case. Transfer Case Fluid -
much like front or rear differential fluid, needs to be replaced due to
the degradation of the fluid's lubrication ability and the fact that
tiny metal particles will be suspended in the fluid from the normal
wear of the gears and bearings. Infiniti Transfer Cases use ATF oil
that is designed to with stand the tremendous pressures created by the
operation of the gear sets.
Beshoff uses quality Castrol Import ATF for transfer case fill which meets all Infiniti specifications.