Bedrock 80W-90
Gear Oil
SAE 80W-90 gear oil for drive axles, differentials and manual gearboxes
Bedrock 80W-90 Gear Oil is the general-service multigrade gear oil in the Bedrock lineup. It is formulated for drive axles, differentials and the manual gearboxes whose maker calls for an 80W-90 gear oil. At operating temperature it holds the same viscosity grade as a 75W-90, and it is a grade found on many axle and gearbox lubricant charts for trucks, pickups and farm and construction equipment.
A mixed fleet sees this grade in many places: the rear axle of a service pickup, the differentials of a dump truck, the gear case on a piece of farm equipment and the manual transmission of an older straight truck. In each one the oil protects gear teeth under load, keeps the bearings oiled and protects the housing against rust and corrosion between oil changes.
Choose Bedrock 80W-90 when the equipment maker's chart lists 80W-90 and the truck works in the temperature range the chart gives for that grade. Where the chart lists a 140 grade for heavier loads or hotter running, move up to Bedrock 85W-140 Gear Oil. Where a fleet wants a full synthetic for its on-highway drive axles, Bedrock 75W-90 Full Synthetic Gear Oil is the companion grade.
Sheets are sent by email on request.
Applications
- Drive axles and differentials on straight trucks, dump trucks and mixers whose maker lists an 80W-90 gear oil.
- Rear and front differentials on heavy-duty pickups and service trucks in a fleet.
- Manual gearboxes on older trucks and equipment whose maker calls for an 80W-90 gear oil rather than a transmission fluid.
- Gear cases, final drives and PTO drives on farm and construction equipment that specify 80W-90.
- Shops and parts counters that stock one 80W-90 for walk-in differential and gearbox service.
- Mixed fleets in mild and warm climates that run one gear oil grade across trucks and equipment.
Performance
- Protects gear teeth in axles and gearboxes against wear and scoring under load.
- Keeps a steady oil film on pinion, carrier and shaft bearings through the work day.
- Flows at start-up in mild and warm weather and holds its viscosity at operating temperature.
- Protects gears, bearings and housings against rust and corrosion between oil changes.
- Resists foaming so the gear set stays in oil at road speed.
Specifications
Bedrock 80W-90 Gear Oil is an SAE 80W-90 gear oil. The specifications it is formulated to meet are listed on the Product Data Sheet, available on request.
Typical properties
Typical properties for Bedrock 80W-90 Gear Oil are listed on the Product Data Sheet, available on request at [email protected] or [email protected].
Packages and part numbers
| Package | Part number | Case pack | |
|---|---|---|---|
| 5-gallon pail | BED80W905G | Single |
Bedrock 80W-90 Gear Oil comes in one package size: 5-gallon pail.
Order by part number from your dealer → Where to Buy
More in Gear Oils
Bedrock 75W-90 Full Synthetic Gear Oil
Full synthetic SAE 75W-90 gear oil for truck drive axles and differentials
Learn more about Bedrock 75W-90 →Bedrock 80W-140 Full Synthetic Gear Oil
Full synthetic SAE 80W-140 gear oil for drive axles that call for a 140 grade
Learn more about Bedrock 80W-140 →Bedrock 85W-140 Gear Oil
Heavy SAE 85W-140 gear oil for drive axles and gear cases in warm-weather, heavy-load service
Learn more about Bedrock 85W-140 →Sizes and part numbers
| Product | 5 GAL |
|---|---|
| Bedrock 75W-90 Full Synthetic Gear Oil75W-90 | BED75W905G |
| Bedrock 80W-90 Gear Oil80W-90 | BED80W905G |
| Bedrock 80W-140 Full Synthetic Gear Oil80W-140 | BED80W1405G |
| Bedrock 85W-140 Gear Oil85W-140 | BED85W1405G |
Swipe sideways to see every size →
Order by Bedrock part number from your dealer.
Frequently asked questions
What is the difference between 80W-90 and 85W-140?
Both are multigrade gear oils. The second number is the viscosity grade at operating temperature, so an 85W-140 is the heavier oil and keeps a thicker film under heavy load and in high heat. The first number describes cold flow; the 80W flows more easily at start-up. Use the grade the axle or gearbox maker lists for your load and temperature range.
Can I use 80W-90 in my pickup's rear differential?
If the owner's manual lists an 80W-90 gear oil for the rear axle and the specification it calls for appears on the Bedrock Product Data Sheet, yes. Check the manual for the fill level and for any special requirement your axle has before you fill it. If the manual lists a 75W-90 synthetic, see Bedrock 75W-90 Full Synthetic Gear Oil.
How often should gear oil be changed?
Follow the schedule in the axle or gearbox maker's manual for your type of service. Heavy loads, high heat, dusty roads and water crossings shorten the interval. Check the level and look for leaks at every service, and change the oil sooner if it looks milky or smells burnt.
Specifications and typical properties are stated on each product's data sheet; follow the equipment maker's service recommendations.
Other Bedrock families
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Find a dealer
TTM Diesel in Houston stocks the line; more dealers are being added.
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Data sheets
A PDS and an SDS for every product, sent by email on request.
Read more →
Request a quote
Write to [email protected] with the part numbers and quantities.
Read more →Bedrock 85W-140 Gear Oil
Heavy SAE 85W-140 gear oil for drive axles and gear cases in warm-weather, heavy-load service
Read more →