(3 pack) Royal Purple Duralec Super 15W-40 Diesel Motor Oil, Diesel Vehicles, 7.7 lbs, 1 Gallon
(3 pack) Royal Purple Duralec Super 15W-40 Diesel Motor Oil, Diesel Vehicles, 7.7 lbs, 1 Gallon
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(3 pack) Royal Purple Duralec Super 15W-40 Diesel Motor Oil, Diesel Vehicles, 7.7 lbs, 1 Gallon

4.8 stars out of 70 reviews
(4.8)|
70 ratings
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Key item features

  • Premium Synthetic Oil: Royal Purple Duralec Super 15W-40 Diesel Motor Oil, 1 Gallon
  • Enhanced Wear Protection: Provides greater wear protection for diesel engines
  • Extended Oil Life: Greatly extends oil drain intervals, reducing maintenance frequency
  • Superior Corrosion Resistance: Offers superior corrosion protection to keep engine components safe
  • Emission Reduction: Reduces exhaust emissions, contributing to a cleaner environment
  • Engine Cleanliness: Keeps engines clean, ensuring optimal performance
  • API-Licensed: API-licensed CK-4 diesel motor oil, suitable for modern diesel engines
  • Seal Safe: Will not harm seals, ensuring compatibility with engine components
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Current price is $89.9423.4 ¢/fl oz
Price when purchased online
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  • Free 90-day returns

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Columbus, 43215
Arrives by Sun, Feb 1
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This item includes:

  • 3-pack of Royal Purple Duralec Super 15W-40 Diesel Motor Oil, Diesel Vehicles, 7.7 lbs, 1 Gallon
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4.8 out of 5 stars
stars70 ratings32 reviews
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Showing 1-3 of 32 reviews

Jun 21, 2025
dJ01
Item details
Multipack quantity: 1
Multipack quantity: 1
5 out of 5 stars review

Verified Purchase

best oil

Good stuff and good price with fast delivery.

Helpful?1DPQQP3H6MG515007071169
Jul 16, 2016
Sunshine
5 out of 5 stars review

Verified Purchase

Happy

I have used this product for several years now and am very pleased with it's performance. I had been using another high quality synthetic motor oil for a long time and while it worked well Royal Purple exceeds it. With Royal Purple the diesel engine in my 2001 Ford runs quieter and usage is practically zero. What got me to first try Royal Purple was the price from Walmart but I'm sold on it now no matter the price. I'm just now switching over to their Max Tane injector cleaner.

Helpful?1DPQQP3H6MG515007071169
Jun 30, 2025
WalmartCustomer
Item details
Multipack quantity: 1
5 out of 5 stars review

Verified Purchase

I can buy the product a little cheaper from a local distributor.

Incentivized Review
Helpful?1DPQQP3H6MG515007071169