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Mobil 1

Delvac 1 ESP 5W-40 Synthetic Heavy Duty Diesel Engine Oil

$137.52

SKU: 122271

In Stock
In Stock
Ships by Sep 9
Free Shipping over $200
$100 Minimum Order
30 Days Return

Overview

The Mobil Delvac 1 ESP 5W-40 is an advanced synthetic heavy duty diesel engine oil. It is formulated to deliver exceptional performance in modern and older, hard-working engines, including those with emission control systems. This oil provides long drain capability and potential fuel economy, and is recommended for a wide range of heavy-duty applications in on-road transport and off-road industries.
Show original supplier description
The Mobil Delvac 1 ESP 5W-40 is an advanced full synthetic, high-performance diesel engine oil designed to help extend engine life while providing long drain intervals and potential fuel economy. It is formulated for modern and the latest diesel engine technologies operating in severe applications. This heavy-duty engine oil is developed to maintain unsurpassed oxidation stability and offers exceptional low-temperature fluidity and pumpability for smooth starting in cold conditions down to -35°C. Its sophisticated additive system ensures exceptional engine wear protection, supporting long engine life. The low ash formulation also protects exhaust after-treatment devices, maintaining cleaner air requirements, while its advanced engine cleanliness performance prevents deposits. Key features include excellent low-temperature pumpability for reliable cold starts and wear protection, superior wear protection to promote extended engine life, unsurpassed oxidation stability for long oil drain intervals and deposit prevention, and superb resistance to corrosion to protect critical engine surfaces in humid environments. It meets or exceeds the requirements of the latest API and ACEA industry specifications for diesel engine oils, as well as the requirements of many major American and European engine manufacturers.

Product descriptions are provided by our supplier partners and may not always be perfectly accurate. Not sure this fits? or call (760) 282-4645 and we’ll verify before you order.

Fitment

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Specifications

BrandMobil 1
Part Number122271
CategoryOils, Fluids and Sealer

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Returns & Fitment

Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

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Shipping

Orders are processed in 1–3 business days. In stock parts ship promptly from our partner network. Special-order items either aren’t currently stocked or are built to your spec — expect 4–6 weeks. If a part goes on backorder while your order is in the queue, we’ll reach out and work through discounted alternatives together.

Free shipping over $200 in the continental US. Alaska, Hawaii, U.S. territories (Puerto Rico, U.S. Virgin Islands, Guam, American Samoa, and the Northern Mariana Islands), and international orders carry surcharges — most appear at checkout. Some exceptions (LTL freight, or suppliers who quote freight only after we place the order) won’t. In those cases we’ll reach out with the exact charge before your order moves forward.

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