TLDR Review: Mobil 1 Delvac 1300 Super Motor Oil
Verdict
Mobil 1 112786 15W-40 Delvac 1300 Super Motor Oil is a solid choice if you need a dependable, standard oil for older diesel engines that consume more oil and want to maintain equipment specs without synthetic additives. It's user-friendly with its pour spout and reduces engine noise noticeably. However, if your vehicle relies on oil-actuated injectors or you are particularly concerned about engine longevity, you might want to consider alternatives like Shell Rotella-T6. Also, if you require large volumes regularly, this product’s limited purchase size could be inconvenient. For dependable diesel motor oil in smaller quantities, this fits the bill well.
- Top pro:
- Maintains original equipment specifications, making it ideal for those who prefer standard, non-synthetic oil.
- Top con:
- Not recommended for trucks with oil-actuated injectors, like the 6.0 PSD engines, due to potential risk of injector failure.
Pros
- •Maintains original equipment specifications, making it ideal for those who prefer standard, non-synthetic oil.
- •Effectively supports a reliable maintenance schedule without causing engine issues.
- •Performs well in older diesel engines, especially those that consume a lot of oil.
- •Has the appropriate 15W-40 viscosity for high oil consumption engines and diesel applications.
- •Significantly reduces engine noise compared to OEM factory oil, resulting in a much smoother engine performance.
- •Well-designed pour spout with a lid makes it easy to handle and prevents leaks.
- •Provides noticeable improvement in engine behavior after the first oil change.
- •Compatible and effective for specific engines like the 2001 7.3 Powerstroke and 1999 Mercedes E300 turbo diesel.
- •Comes securely packaged with protective wrapping, ensuring product integrity.
- •Recommended by some previous owners who used it exclusively and were satisfied.
Cons
- •Not recommended for trucks with oil-actuated injectors, like the 6.0 PSD engines, due to potential risk of injector failure.
- •Contains lower ZDDP levels compared to older formulations, which may impact wear protection in some engines.
- •Users concerned about long-term engine longevity might prefer oils from more trusted brands like Shell Rotella-T6.
- •Limited to purchasing only 3 gallons at a time, which is inconvenient for vehicles requiring large quantities (e.g., 12 gallons).
- •The need to buy multiple small quantities can be frustrating for those doing serious or frequent oil changes.
- •Provides reliable basic performance but lacks extra features found in some premium synthetic oils.
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How we researched this
About this review: it summarizes the professional reviews and customer ratings ShopSavvy collected for this product, alongside prices from 1 retailer in ShopSavvy's price data, most recently seen Jun 11, 2026.
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