Delo 400 XLE SB Synthetic Blend SAE 15W-40 Heavy-Duty Diesel Motor Oil 1 Gallon (3 Pack)

Item # 990348124
Current price is $44.98
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Smart summary

Generated by AI
  • Advanced Formulation: This high-quality synthetic blend engine oil incorporates ISOSYN Advanced Technology, specifically engineered for robust performance in heavy-duty diesel engines.
  • Extended Protection: Provides exceptional long drain performance, offering intervals up to 1.5 times longer than OEM standards, enhancing vehicle utilization and minimizing downtime.
  • Superior Cleanliness: Delivers outstanding deposit control, ensuring clean pistons, turbochargers, and engine rings, while also managing oil consumption and preventing sludge.
  • Cold Start Advantage: Ensures better low-temperature pumpability and improved flow properties compared to conventional 15W-40 oils, facilitating easier cold starts.
  • Emission Longevity: Contributes to excellent emission control system life by optimizing Diesel Particulate Filter (DPF) longevity, reducing cleaning frequency and downtime.
  • Broad Compatibility: Approved by major heavy-duty Original Equipment Manufacturers and backward compatible with previous API service categories, making it suitable for diverse mixed fleets.
  • Wear Defense: Features exceptional soot dispersancy and wear control, safeguarding critical engine components like cylinders, rings, and valve trains from wear and corrosion.
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5 out of 5 Stars. 1 reviews
Delo 400 XLE SB Synthetic Blend SAE 15W-40 Heavy-Duty Diesel Motor Oil 1 Gallon (3 Pack)
Delo 400 XLE SB Synthetic Blend SAE 15W-40 Heavy-Duty Diesel Motor Oil 1 Gallon (3 Pack)
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About this item

Product details

Delo 400 XLE SB SAE 15W-40 with ISOSYN Advanced Technology is a high-quality synthetic blend engine oil. It's designed for extended drain intervals up to 1.5 times longer than OEM standards and is suitable for mixed fleets. This oil is ideal for diesel engines requiring API CK-4 or SN service categories and SAE 15W-40 viscosity. It has approvals from major heavy-duty Original Equipment Manufacturers, meeting their latest engine oil specifications. This makes it a versatile choice for various engine types. It provides exceptional deposit control, maintaining clean pistons and turbochargers. The oil also ensures better low-temperature pumpability compared to conventional SAE 15W-40 oils, with improved flow and similar pour point to SAE 10W-30 products, offering better cold flow properties.  

Overall, Delo 400 XLE SB SAE 15W-40 delivers value through its extended drain performance, exceptional deposit control, better low temperature pumpability, and compatibility with a wide range of engine models and previous API Oil Service Categories. Delo 400 XLE SB SAE 15W-40 with ISOSYN Advanced Technology offers significant cost savings through minimized operating expenses. Its exceptional soot dispersancy and wear control ensure that engine components like cylinders, pistons, rings, and valve trains are well-protected against wear and corrosion, leading to optimal service life and reduced maintenance needs. This contributes to maximum equipment use with minimal downtime.

 The oil also excels in emission control, providing long Diesel Particulate Filter (DPF) life, which translates to less downtime and cleaning, effectively managing maintenance costs. It is backward compatible with previous API Oil Service Categories, offering a single solution for heavy-duty stationary engines and Allison off-highway transmission performance. It's suitable for a wide range of engines, including various diesel engines, which simplifies inventory and dispensing systems, potentially saving money, space, and handling time.

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Specifications

  • Corrosion Protection
  • Enhanced Wear Protection
  • Prevents Wear and Tear
  • Enhanced Anti-Wear Additives
  • Advanced Friction-Fighting Additives
  • Combats Engine Sludge
  • Member ratings & reviews

    4.9 out of 5 stars
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    31 ratings7 reviews
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    Showing 1-3 of 7 reviews

    Feb 16, 2026
    Jack
    5 out of 5 stars review

    Verified Purchase

    excellent motor oil for diesel engines.

    I have been using Chevron Delo in all my diesel engines for years with very satisfactory results. If it works don't change it.

    Review from walmart.com
    Helpful?1TYJEQU3R2DL13680953497
    Dec 6, 2025
    Dennis
    5 out of 5 stars review

    Verified Purchase

    I always put this same oil my engine , TY guys.

    I always like to buy this

    Helpful?1TYJEQU3R2DL13680953497
    Mar 25, 2026
    AmitBedi
    5 out of 5 stars review

    Verified Purchase

    High Quality oil.

    HIGH QUALITY OIL WITH LOW PRICE. UNBELIEVABLE.

    Review from walmart.com
    Helpful?1TYJEQU3R2DL13680953497