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| AR Services and Capabilities > Gasoline Fired Engine Lubricant Tests > Sequence IVA Test Method |
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Sequence IVA Test Method |
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The Sequence IVA test measures a motor oil's ability to inhibit camshaft wear. Using a Nissan 2.3L, 3 valve per cylinder, 4 cylinder engine, the crankcase oil is subjected to 100 hours of continuous engine running, cycling from an 800 rpm idle period to a short 1500 rpm stage, and back again, 100 times, under very precise control of operating conditions. At the end of the test, the camshaft is removed and measured for wear. Each of the 12 camshaft lobes is measured in 7 places, and an average lobe wear is computed for the test. This test replaces the wear measurement portion of the Sequence VE test.
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Intertek AR is located at:
5404 Bandera Road
San Antonio, Texas
78238-1993 USA
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