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JASO M342 Smoke Test

Engine Tests

Test Method Summary
The JASO M342 specification test evaluates the exhaust smoke formation performance of lubricating oil used in 2-stroke gasoline engines, such as motorcycle engines, utility engines and outboard engines.

Test Engine
Suzuki generator SX800R
Test Fuel
Mixed fuel with a mixing ratio of 10:1
Test conditions
Operation at 50Hz-0W for 20 minutes, followed by rapid loading up to 670W and then evaluated exhaust smoke formation.
Test order : The test is performed in the following order the standard reference oil, a candidate oil, and the standard reference oil - on the same day in order to prevent errors from environmental factors, such as, atmosphere etc..
Evaluating method
The smoke density peak is recorded with a smoke meter
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