Hubert Glass Oil HD 15W-40 CK-4 Motor Oil 55-Gallon Drum #G1540-D
| Part Number | G1540-D |
| Viscosity Grade | 15W-40 |
| Product Type | Heavy-Duty Diesel Engine Oil |
| Formulation | Conventional / Heavy-Duty |
| Service Rating | API CK-4 |
| Package | 55-Gallon Drum |
| Viscosity @ 40 °C | 116.3 cSt |
| Viscosity @ 100 °C | 14.8 cSt |
| Viscosity Index | 131 |
| Pour Point | -43 °C |
| Flash Point | 230 °C |
| TBN | 8.8 |
Hubert Glass Oil HD 15W-40 CK-4 Motor Oil 55-Gallon Drum #G1540-D
The Hubert Glass Oil #G1540-D is Glass HD 15W-40 (API CK-4) heavy-duty motor oil in a 55-gallon drum — the latest-generation premium heavy-duty oil that meets or exceeds the service requirements of virtually all diesel engines manufactured, including 2017 GHG-compliant, EPA 2010 low-emission engines with SCR, DPF and EGR systems, and all previous API diesel categories for older engines.
On the data sheet's numbers: 116.3 cSt at 40 °C and 14.8 cSt at 100 °C, a 131 viscosity index, a -43 °C pour point, a 230 °C flash point and an 8.8 TBN. The data sheet carries claims for ACEA E9, API CK-4 through SN, Caterpillar ECF-1/2/3, Cummins CES 20086/20081/20077, Detroit Diesel 93K222 and Ford WSS-M2C171-F1.
Where It Works — Per the Data Sheet / Price Book
- Diesel truck fleets — one 15W-40 for every engine in the yard
- Equipment with SCR, DPF or EGR aftertreatment
- Older diesel engines — backwards-compatible with all previous API categories
Features & Benefits
- One product, every diesel. Minimize inventory — the data sheet's own pitch, and the reason 15W-40 is the default fleet drum.
- Soot and wear control. Improved soot handling and a detergent system for engine cleanliness; superior valve-train wear protection per the data sheet's Cummins ISB test.
- Extended-drain reserve. Oxidation control beyond the CK-4 limit — the data sheet cites 60% headroom on the Volvo T-13 test.
Questions Shops Ask
What engines can run this 15W-40?
Per the data sheet: 2017 GHG-compliant and EPA 2010 low-emission diesels with SCR, DPF and EGR, and older engines — it is backwards compatible with all previous API diesel categories (CJ-4 through CH-4) and also carries API SN for gasoline engines that allow it.
CK-4 versus FA-4?
CK-4 is the standard heavy-duty 15W-40 for existing engines; FA-4 is a lower-viscosity fuel-economy oil for specific new engines. This drum is CK-4. If your engine calls for FA-4, do not substitute — call (817) 865-3707.
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 $825.80 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: G1540-D, G1540D
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.