Hubert Glass Oil Synthetic Blend 15W-40 CK-4 Motor Oil 55-Gallon Drum #G1540SB-D
| Part Number | G1540SB-D |
| Viscosity Grade | 15W-40 |
| Product Type | Heavy-Duty Diesel Engine Oil |
| Formulation | Synthetic Blend |
| Service Rating | API CK-4 |
| Package | 55-Gallon Drum |
| Viscosity @ 40 °C | 117.42 cSt |
| Viscosity @ 100 °C | 15.45 cSt |
| Viscosity Index | 138 |
| Pour Point | -35 °C |
| Flash Point | 204 °C |
| TBN | 7.8 |
Hubert Glass Oil Synthetic Blend 15W-40 CK-4 Motor Oil 55-Gallon Drum #G1540SB-D
The Hubert Glass Oil #G1540SB-D is Glass Synthetic Blend 15W-40 heavy-duty motor oil in a 55-gallon drum — the synthetic-blend version of the fleet 15W-40, for virtually all on- and off-highway diesel service, current emission-compliant and older engines alike.
On the data sheet's numbers: 117.42 cSt at 40 °C and 15.45 cSt at 100 °C, a 138 viscosity index, a -35 °C pour point, a 204 °C flash point and a 7.8 TBN, with OEM claims including Cummins CES 20081, Navistar, Detroit Diesel 93K218, Mack EO-O Premium Plus 07, MAN M3275, Mercedes-Benz 228.3, Volvo VDS 4 and Renault RLD-3.
Where It Works — Per the Data Sheet / Price Book
- Diesel fleets that want synthetic-blend cold-flow at a lower price than full synthetic
- Mixed on- and off-highway service on one 15W-40 grade
Features & Benefits
- Synthetic-blend cold starts. Exceptional low-temperature flow per the data sheet, without the full-synthetic price.
- Soot and cleanliness. Improved soot control and an exclusive detergent system per the data sheet.
- Shear stability. Outstanding shear stability for viscosity control through the drain interval.
Questions Shops Ask
Synthetic blend versus conventional 15W-40?
Both are Glass fleet 15W-40s. The conventional (G1540-D) is the volume standard; the blend flows colder at -35 °C and holds its viscosity with synthetic stock. If your fleet specs a blend or runs cold routes, this is the one.
Is there a minimum order?
Yes — see the highlighted notice on this page. If the Glass Oil items in your cart fall short at checkout, we cannot fulfill the order; we will contact you and refund you in full.
Why Buy from Alamo
- We stock the grades your engines actually call for. Glass Oil by the drum, pail and case — one order, no scavenger hunt.
- We help match the grade before the order ships. Tell us what the engine spec says and we confirm it.
- Questions on grade, OEM specs or quantities? Call (817) 865-3707.
Fitment & Handling
Confirm the SAE grade your engine or equipment manufacturer specifies before filling — the oil cap and owner's manual are the authority. Do not substitute grades unless the documentation allows it. Store sealed and out of ignition sources, and route used oil to a collection service. Need help matching a fluid? Call Alamo Equipment at (817) 865-3707.
Drum delivery. This drum ships by LTL freight, delivered to your shop. Delivery is included in the price — a $20 pallet fee & fuel surcharge is added at checkout.
Quantity price break. At 4+ drums, the price drops to $854.29 each. Select 4 or more in the quantity box — the break price is applied to your order before it ships, and any difference from the checkout price is refunded in full.
$350 minimum for Glass Oil orders. Glass Oil orders must total at least $350 for us to fulfill them. If you check out with less, we cannot fulfill the order. We will contact you and refund your money in full.
Part numbers: G1540SB-D, G1540SBD
Shipping follows the method shown on the product page and at checkout. Standard parcel, calculated LTL, freight quotes, included freight, and pickup may apply by item.