Published: Jan 1977
| ||Format||Pages||Price|| |
|PDF (1.7M)||107||$25||  ADD TO CART|
|Complete Source PDF (8.5M)||264||$79||  ADD TO CART|
This method describes an engine test procedure that evaluates engine oils with respect to sludge and varnish deposits produced by engine operation under a combination of low and mid-range temperatures. This test also indicates the capacity of the oil to keep positive crankcase ventilation (PCV) valves clean and functioning properly.