Selection Of Engine Oil - Kia Cerato 2009 Service Manual

1. Remove the relief plunger.
Remove the plug(A), spring(B) and relief plunger(C).
INSPECTION
1. Inspect the relief plunger.
Coat the plunger with engine oil and check that it falls smoothly into the plunger hole by its own weight.
If it does not, replace the relief plunger. If necessary, replace the front case.
2. Inspect the rotor side clearance.
Using a feeler gauge and precision straight edge, measure the clearance between the rotors and precision straight
edge.
Side clearance
If the side clearance is greater than maximum, replace the rotors as a set. If necessary, replace the front case.

SELECTION OF ENGINE OIL

Recommended API classification : CH-04
Recommended ACEA classification : B4
Recommended SAE viscosity grades :
Outer rotor
Inner rotor
0.04 ~ 0.09mm
(0.0016 ~ 0.0035in)
0.04 ~ 0.085mm
(0.0016 ~ 0.0033in)