SKU: 20154277458

Warren Oil Lubriguard™ SAE 15W-40 CK-4/SN Synthetic Blend HD Diesel Engine Oil 1 Gallon

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Description

Warren Oil Lubriguard™ SAE 15W-40 CK-4/SN Synthetic Blend HD Diesel Engine Oil 1 GallonLubriguard Synthetic Blend SAE 15W 40 CK 4 SN Engine Oil is formulated for use in high speed four stroke cycle diesel engines designed to meet 2017 model year on highway and Tier 4 non road exhaust emission standards as well as for previous model year diesel engines. It is formulated for use in all applications with diesel fuels ranging in sulfur content up to 500 ppm. Use of this oil with greater than 15 ppm sulfur fuel may impact exhaust

Lubriguard™ Synthetic Blend SAE 15W-40 CK-4/SN Engine Oil is formulated for use in high-speed four-stroke cycle diesel engines designed to meet 2017 model year on-highway and Tier 4 non-road exhaust emission standards as well as for previous model year diesel engines. It is formulated for use in all applications with diesel fuels ranging in sulfur content up to 500 ppm. Use of this oil with greater than 15 ppm sulfur fuel may impact exhaust aftertreatment system durability and/or oil drain interval. It is especially effective at sustaining emission control system durability where particulate alters and other advanced aftertreatment systems are used. API CK-4 oils are designed to provide enhanced protection against oil oxidation, viscosity loss due to shear, and oil aeration as well as protection against catalyst poisoning, particulate alter blocking, engine wear, piston deposits, degradation of low and high-temperature properties, and soot-related viscosity increase. Meets or exceed the performance criteria of API CJ-4, CI-4 PLUS, CI-4, and CH-4. Approved for use in applications calling for Ford Specification WSS-M2C171-F1.

Original Equipment Approvals:
 Cummins CES 20086 • Detroit™ DFS 93K222 • Ford Specification WSS-M2C171-F1
 Mack EOS-4.5 • Renault RLD-4 • Volvo VDS-4.5
Meets Or Exceeds The Following Requirements:
 API Service Classification CK-4, CJ-4, CI-4 PLUS, CI-4, CH-4/SN, SM, SL, SJ • ACEA E9, ACEA E7
 Caterpillar ECF-3, ECF-2 • Cummins CES 20081 • Daimler MB 228.31 • Detroit™ DFS 93K218
 Mack EO-O Premium Plus, EO-N • MAN M3575 • MTU Category 2.1 • Renault RLD-3 • Volvo VDS-4, VDS-3

Shipping Notes
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Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
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SKU: 20154277458

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4.5 ★★★★★
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Louise
Dallas, US
★★★★★ 5
Works great!
Size: 180 Count (Pack of 1)
Purchased this item at the recommendation of my PCP to help alleviate my Charlie Horses in my legs. Take 3 tabs an hour or so before bedtime, and it solved that issue.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 16, 2026
Y
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Yunju Lee
Dallas, US
★★★★★ 4
It's easy to take one pill a day.
Size: 180 Count (Pack of 1)
I sometimes get cramps in my calves while sleeping, so I eat before bed. Personally, I think it's effective. I am satisfied with the product and delivery.
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Reviewed in the United States on December 11, 2025
D
Verified Purchase
debb
Lexington, US
★★★★★ 5
It works!!
Size: 180 Count (Pack of 1)
I wake up feeling refreshed..and ready for the day.
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Reviewed in the United States on May 6, 2026
R
Verified Purchase
Ricebird
Fort Morgan, US
★★★★★ 5
Encapsulated Mag Citrate
Size: 180 Count (Pack of 1)
Exactly what my body needs. Encapsulated magnesium.
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Reviewed in the United States on May 15, 2026
B
Verified Purchase
Bancha
Charlottesville, US
★★★★★ 5
best sleep aid I have found
Item Package Quantity: 1, Style: 240 Count (Pack of 1)
this is the best sleep aid I have found. This dissolves under the tongue, goes right into your system and I take two of them every night. They do not work like a sleeping pill and knock you out immediately--- they are natural and take longer plus I feel you need time to get them in your system and feel a difference. Therefore I did not expect immediate results. I have had insomnia for years so I took them for a couple of months when I started noticing the most effect. Now when I take them and let them dissolve under my tongue I know that in about 30 minutes or less I will start to feel drowsy and will naturally go to sleep. Over time I have felt my sleep has deepened and now I rarely awaken during the night. By the way, in the beginning of my search to solve my insomnia problem, I tried taking the melatonin pills that you just swallow but did not get the same results that I have gotten with these that I put under my tongue. Excellent company and excellent product.
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Reviewed in the United States on April 29, 2021

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