The reason Mobil Delvac is chosen by the world’s leading original equipment manufacturers and commercial vehicle owner/operators is quite simple — its proven record and leading edge technology. The comprehensive range is led by Mobil Delvac 1 ESP 5W-40, a fully synthetic, supreme performance, low-ash diesel engine oil that helps extend both engine and emission system life, while providing long drain intervals and fuel economy potential in modern diesel engines.
Learn more about the benefits of synthetic oils and why Mobil Delvac makes a difference.

Fuel represents a large proportion of commercial vehicles’ operating costs. The Mobil Delvac range of synthetic engine oils, synthetic gear oils and greases has the potential to offer fuel economy advantages versus conventional lubricants.

Mobil Delvac synthetic lubricants provide outstanding stability at high temperatures. That means they have better resistance to thermal degradation, which can lead to performance sapping sludge, deposit build-up and viscosity breakdown. Mobil Delvac synthetics offer long drain performance, saving you time and money.