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โ๏ธ Keep your fleet running cooler, cleaner, and longer with the ultimate synthetic diesel oil!
The SAE 15W-40 Full Synthetic Diesel Engine Oil API CK-4/SN in a 265-gallon tote delivers advanced heavy-duty engine protection with superior shear stability and thermal performance. Certified to exceed API CK-4, CJ-4, CI-4 PLUS, CH-4, and SN standards, itโs engineered for modern on-highway trucks and Tier 4 non-road diesel engines. This versatile oil reduces oil consumption, supports emission system health, and is compatible with both diesel and gasoline heavy-duty engines, making it the go-to choice for fleet managers seeking durability, compliance, and cost-efficiency.





| ASIN | B0DG36YCM2 |
| Automotive Fit Type | Universal Fit |
| Best Sellers Rank | #87,167 in Automotive ( See Top 100 in Automotive ) #589 in Motor Oils |
| Brand | ULTRA 1PLUS |
| Brand Name | ULTRA 1PLUS |
| Compatible with Vehicle Type | Buses, Off-road / Industrial equipment, Truck, Vans |
| Container Type | Tote |
| Customer Reviews | 4.7 out of 5 stars 74 Reviews |
| Included Components | oil |
| Liquid Volume | 265 gallons |
| Manufacturer | Ultra1plus |
| Manufacturer Part Number | UFS1540CK4T |
| Manufacturer Warranty Description | 22 |
| Model Number | UFS1540CK4 |
| Package Information | Tote |
| SAE J300 Viscosity Grade | 15W-40 |
| Size | 265 Gallon Tote |
| UPC | 810111110921 |
| Unit Count | 33920 Fluid Ounces |
| Vehicle Service Type | Buses, Off-road / Industrial equipment, Truck, Vans |
| Viscosity Level | Medium to High |
J**S
Runs cool, well kinda, in Kubota BX2230
After 20 years I decided to convert my Kubota BX2230 to synthetic oil since everything I've read indicates synthetic is superior in every way. I wish I could say that the tractor now purrs like a kitten at idol but that would not be honest. it still rattles and shakes like a 1960's rock and roll gogo girl. But, that's okay. As long as it keeps running I will be happy.
D**G
Works great for my tractors in my truck
It's compatible with all my tractors and trucks. The value for the money is good. It's synthetic, it's durable. It stays pretty clean in my engine for a while, especially on my tractors. I've not had any leakage or sealing issues
M**S
I like the packaging
Excellent product
B**K
Great oil. Great price
I like that itโs a great oil and made in America
C**R
Good oil @ good price.
Good oil.
W**T
Great price, beats all retailers
Great price on great synthetic.
J**N
Oil works great
This oil works great, used it in China mopeds that called for that oil weight.
D**O
Excellent oil I will buy again
Excellent oil I will buy again mileage increase by 2 1/2 Mpg
Trustpilot
2 months ago
1 month ago