Click on image to zoom

12378522 - 5W40 Mobil Delvac ESP, Turbo Diesel Truck Oil - 1 Gallon

This product may require vehicle validation(s) for proper fitment. Please contact us to confirm correct vehicle fitment and usage.

Pricing: $28.95


Mobil Delvac 1 ESP 5W-40 is a fully synthetic supreme performance heavy duty diesel engine oil that helps extend engine life while providing long drain capability and potential fuel economy for modern diesel engines operating in severe applications. Mobil Delvac 1 ESP utilizes state-of-the-art technology to deliver exceptional performance in modern low emission engines, including those with Exhaust Gas Recirculation (EGR) and Aftertreatment systems with Diesel Particulate Filters (DPF’s) and Diesel Oxidation Catalysts (DOC’s), as well as refrigerated units and older, well-maintained engines. Mobil Delvac 1 ESP 5W-40 is recommended for use in a wide range of heavy-duty applications and operating environments found in the on-road transport and off-road mining, construction, and agricultural industries. Mobil Delvac 1 ESP also meets the requirements of the API SM specification for gasoline engines used in mixed fleets.

The outstanding performance of Mobil Delvac 1 ESP 5W-40 is the result of extensive cooperative development work with major equipment builders and application of the latest lubrication technology. As a result, this product meets or exceeds the requirements of the latest API, ACEA, and Global industry specifications for diesel engine oils, as well as the requirements of virtually all major American, and European engine manufacturers.
Features and Benefits

Many modern, low emission diesel engines generate more soot and operate at higher temperatures than older engines. This significantly increases the need for supreme performance lubricants. In addition, new engines (model-year 2007 and beyond) come equipped with aftertreatment devices installed in the engine exhaust stream which will require the use of both API CJ-4 oils and ultra-low sulfur fuels to function properly. Further, new engines using EGR will generate even higher levels of acid, soot and heat than older EGR engines due to substantially increased EGR rates compared to previous EGR designs. Top piston rings are located higher, bringing the oil film closer to the combustion chamber and exposing the lubricant to severe thermal stresses. Mobil Delvac 1 ESP 5W-40 maintains outstanding performance at significantly higher temperatures than other high performance diesel engine oils. It is also fully compatible with conventional oils.

Application List



  • 12378522
  • 12378522
  • Mobil 1
  • New

Shipping Information

  • Item Requires Shipping
  • 8.0 lbs.
  • W12.0000” x H12.0000” x L8.0000”

Customer Reviews

Comment Total Reviews (0)

Write the First Review!

You must login to post a review.

  • We don’t just want your business today. We want to EARN your business for LIFE!
  • USA Owned, Operated & Employed
  • Installers & Resellers Click Here to Apply
  • We Specialize In:
    • GM LS Conversions
    • Engine & Trans Combo Kits
    • Unique Ready to Run Engines
  • Have a question?
  • 888-748-4655 Mon-Fri 8AM-6PM EST
  • Click above for 24/7 Live Chat Service.