Why Choose Lubri-Loy Automotive Gear Oil 85W-140 (AGO-8W140-640) Over Southwest Oil Co. Gear Oil 85W140
Southwest Oil 85W140 alternative
- Lubri-Loy
- Automotive Gear Oil 85W-140, GL-4 and GL-5
- Package
- 5 gal pail
If you buy Southwest Oil Co. Gear Oil 85W140 in 5 gallon pails, Lubri-Loy's interchange list gives you AGO-8W140-640: Automotive Gear Oil 85W-140 in a 5 gallon pail, available direct from Lubri-Loy.
We could not find a public data sheet for Southwest's product, so this page compares only what we can verify: the Lubri-Loy specifications and the interchange pairing. Confirm your application requirements before you switch.
Southwest Oil Co. Gear Oil 85W140 vs AGO-8W140-640
| Attribute | Southwest Oil Co. Gear Oil 85W140 | AGO-8W140-640 |
|---|---|---|
| Viscosity grade | 85W-140 | 85W-140 |
| API service | See Southwest Oil Co. label or data sheet | GL-4 and GL-5 family; GL-5 recommended for hypoid gears in moderate and severe service |
| Specifications | No public data sheet found | Meets MIL-L-2105D, Mack GO-J and Rockwell O-76-D (85W-140), per Lubri-Loy catalog |
| Additive system | See Southwest Oil Co. label or data sheet | Sulfur-phosphorus extreme-pressure package for anti-weld, anti-scuff and anti-wear (catalog) |
| Package | 5 gal pail | 5 gal pail (AGO-8W140-640); 55 gal drum is AGO-8W140 |
Southwest Oil Co. does not publish a data sheet we could locate, so no competitor values are shown. Lubri-Loy values are from the Lubri-Loy catalog.
Why choose AGO-8W140-640
Buy direct, ship free
AGO-8W140-640 is on lubriloy.com with a listed price and free US shipping. Net 30 terms are available by credit application.
Severe-service gear protection
The catalog describes high quality HVI base stocks with an extreme-pressure additive package for anti-weld, anti-scuff and anti-wear protection.
Pail or drum
Buy 5 gallon pails now and step up to 55 gallon drums when your usage grows.
Since 1949
Lubri-Loy has supplied lubricants since 1949. We source, formulate and package through our network of US blending partners.
Check before you switch
Confirm that your axle or transmission maker's required API gear-oil category and any limited-slip requirements match what you buy. If your application calls for a synthetic, Lubri-Loy lists a separate synthetic 85W-140 (AGOS-8W140).
Because we could not verify Southwest Oil Co.'s published specifications, compare your current label against the Lubri-Loy catalog sheet before you switch.
FAQ
What is the Lubri-Loy equivalent of Southwest Oil Co. Gear Oil 85W140?
Lubri-Loy's interchange list pairs Southwest Oil Co. Gear Oil 85W140 (5 gallon pail) with Lubri-Loy AGO-8W140-640, an 85W-140 automotive gear oil in a 5 gallon pail.
Is AGO-8W140-640 a GL-5 oil?
Lubri-Loy's catalog lists the AGO line as GL-4 and GL-5 multipurpose gear oils, with GL-5 recommended for hypoid gears in moderate and severe service.
Is there a synthetic version?
Yes. Lubri-Loy lists a synthetic 85W-140 as AGOS-8W140.
How do I buy it?
Order on lubriloy.com with free US shipping, or call (877) 582-7456.
Premium Lubricants, Without Premium Prices.
Automotive Gear Oil 85W-140, GL-4 and GL-5
AGO-8W140-640 / 5 gal pail