|
The JASO M328:1995 specification test evaluates the valve train wear
(cam, rocker-arm,etc.,) performance of lubricating oils for passenger
car gasoline engines.
Test
engine
|
Nissan KA24E (gasoline)
 |
|
|
 |
Test
Fuel
|
Class 2 gasoline, as specified in JIS
K 2202 or equivalents |
Test
conditions
|
One cycle consists
in the following 2 stages:
| |
I |
II |
| time (mins.) |
50 |
10 |
| speed (rpm.) |
800 |
1500 |
| load (Nm) |
15 |
15 |
| Oil temp.
at sump (oC) |
50 3 |
- |
|
(temperatures
are also specified)
The test is run for 100 cycles
|
Test
duration
|
100 hours |
Measuring
items
|
Includes .... rating of sludge
and varnish / blocking of oil strainer / oil consumption
/ wear / deposits on valves / deposits in combustion
chamber / used oil analysis |
|
|
|
Top page