Product Description The Mobil Vactra Oil Numbered Series are premium-quality lubricants specifically designed to fully meet the requirements for accuracy and parts finish of today’s high production machine filterability properties and reduce the need for frequent maintenance services. The Mobil Vactra Oil Numbered Series provide excellent separability from water and aqueous coolants reducing the potential negative effects of cross contamination enhancing the service life and performance of both the lubricant and the coolants.