Mobil Delvac™ – engine oil for heavy-duty engines

The product of ExxonMobil's 90-plus years' of expertise in developing lubricants for heavy-duty machinery, Mobil Delvac™ oils don't simply meet the requirements of today's commercial vehicle manufacturers and operators; they often surpass them. 
With many of the world's leading heavy equipment engine builders selecting Mobil Delvac for factory and service fills, and endorsements for the brand coming from the major manufacturers of heavy commercial equipment, you can be sure that you'll get the best out of your vehicles by putting the best into them. 
And no matter how complex the operating conditions, that means Mobil Delvac.