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🛢️ Power your fleet with the ultimate synthetic shield—because your engine deserves the best.
ULTRA 1PLUS SAE 15W-40 Full Synthetic Heavy-Duty Diesel Engine Oil is API CK-4/SN certified, engineered for 2020+ on-highway trucks and Tier 4 non-road diesel engines. It offers superior wear protection, exceptional shear stability, and thermal performance under extreme conditions. Compatible with diesel and gasoline heavy-duty vehicles, it reduces oil consumption and protects emission systems, making it the go-to oil for mixed fleets.
| ASIN | B0B5Y1XWYQ |
| Automotive Fit Type | Universal Fit |
| Best Sellers Rank | #128,989 in Automotive ( See Top 100 in Automotive ) #731 in Motor Oils |
| Brand | ULTRA 1PLUS |
| Brand Name | ULTRA 1PLUS |
| Compatible with Vehicle Type | Buses, Off-road / Industrial equipment, Truck, Vans |
| Container Type | Jug |
| Customer Reviews | 4.7 out of 5 stars 74 Reviews |
| Flash Point | 220 °C |
| Included Components | Motor Oil |
| Item Highlight | Delivers superior wear protection and thermal stability for heavy-duty diesel engines in extreme temperatures and heavy loads |
| Liquid Volume | 1 gallons |
| Manufacturer | Ultrachem LLC |
| Manufacturer Part Number | UFS1540CK4SNG |
| Manufacturer Warranty Description | 22 |
| Model Number | UL108 |
| Number of Packs | 1 |
| Package Information | Jug |
| SAE J300 Viscosity Grade | 15W-40 |
| Size | 1 Gallon Jug |
| UPC | 810050658966 |
| Unit Count | 128 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 it’s 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
1 month ago
2 weeks ago