Ravenol VSG 75W90 Gear Oil Test Piotr Tester gearbox
Subscribe: /c/PiotrTester?sub_confirmation=1\n@PiotrTester \n\nRound 4\nTemperature: normal (no heating)\nRavenol VSG 75W90\n\nWhat does the test show?\nThe more weights you manage to put on the machine until it stops, the stronger the oil film tested wi