10W40
Subscribe: https://www.youtube.com/c/PiotrTester?sub_confirmation=1 @PiotrTester Round 4 Temperature: normal (no heating) Opel GM 10W40 from 2023. What does the test show? The more weights you manage to put on the machine until it stops, the stronger the oil film under test. The test examines the oil film’s resistance to tearing. The sample is measured with a micrometer […]
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