Bedrock 15W-50
SYNTHETIC BLEND
HEAVY-DUTY ENGINE OIL
BUILT FOR EVERY LOAD.
SAE 15W-50 synthetic blend heavy-duty engine oil, a heavier grade for engines whose maker allows a 15W-50
Bedrock 15W-50 is a synthetic blend heavy-duty engine oil one step heavier than the 15W-40 at operating temperature. The two oils share the same winter rating for cold starts. The difference shows once the engine is hot: a 15W-50 keeps a thicker oil film between moving parts, which is the reason operators choose this grade for engines whose maker lists a 15W-50 as an option.
A heavier grade earns its place in a few situations. Engines that work hard in Gulf Coast summer heat, with long idle periods and little airflow, run higher oil temperatures than the same engines on the open road. Older engines with more clearance at the bearings and rings can use oil faster on a lighter grade. In both cases, where the engine maker allows it, a 15W-50 holds its film and helps control oil consumption without going all the way to a 20W-50.
In the Bedrock line, the 15W-50 sits between the everyday 15W-40 and the heavy 20W-50. It is the grade to try first when a 15W-40 engine is running hot or using oil and the maker's chart allows a heavier oil. Bedrock 15W-50 is packaged in the 2-gallon jug, sized for the owner-operator or the shop that keeps one or two engines on a heavier grade.
Sheets are sent by email on request.
Applications
- Diesel engines in trucks and equipment whose maker lists a 15W-50 for high ambient temperatures
- Older on-highway and vocational trucks that have started using oil on a 15W-40, where the maker's viscosity chart allows a heavier grade
- Construction and oilfield equipment that idles for long stretches in summer heat with little airflow over the engine
- Stationary and standby engines at steady high load, such as pump and generator engines, where a 15W-50 is specified
- Farm and ranch equipment whose manual names a heavy-duty 15W-50 for the hot months
- Owner-operators and small shops that keep one or two engines on a heavier grade
Performance
- Keeps a thicker oil film than a 15W-40 between bearings, rings and cylinder walls at full operating temperature
- Helps control oil consumption in engines with worn clearances, where the engine maker allows a heavier grade
- Resists thinning and oxidation through long, hot days of loaded work and extended idling
- Shares the 15W winter rating of the 15W-40 for cold starts
- Holds soot and combustion by-products in suspension until the oil is drained
- Formulated for use where a 15W-50 heavy-duty engine oil is specified
Specifications
Bedrock 15W-50 is an SAE 15W-50 synthetic blend heavy-duty engine oil. The API service category and any engine maker specifications it is formulated to meet are listed on the Product Data Sheet, available on request.
Typical properties
Typical properties for Bedrock 15W-50 are listed on the Product Data Sheet, available on request from [email protected].
Packages and part numbers
| Package | Part number | Case pack | |
|---|---|---|---|
| 2-gallon jug | BED15W502G | 3 per case |
Bedrock 15W-50 comes in one package, the 2-gallon jug.
Order by part number from your dealer → Where to Buy
More in Heavy-Duty Engine Oils
Bedrock 15W-40 Synthetic Blend Heavy-Duty Engine Oil
SAE 15W-40 synthetic blend diesel engine oil for on-highway trucks, diesel pickups and off-road equipment
Learn more about Bedrock 15W-40 →Bedrock 10W-30 Synthetic Blend Heavy-Duty Engine Oil
SAE 10W-30 synthetic blend diesel engine oil for on-highway fleets whose engine makers specify a 10W-30 grade
Learn more about Bedrock 10W-30 →Bedrock 20W-50 Synthetic Blend Heavy-Duty Engine Oil
SAE 20W-50 synthetic blend heavy-duty engine oil, the heaviest grade in the Bedrock engine oil line, for engines whose maker allows a 20W-50
Learn more about Bedrock 20W-50 →Bedrock SAE 30 Non-Detergent Motor Oil
SAE 30 non-detergent motor oil for equipment whose maker calls for an ND oil
Learn more about Bedrock SAE 30 ND →Sizes and part numbers
| Product | 1 GAL | 2 GAL | 5 GAL | 55 GAL | 275 GAL |
|---|---|---|---|---|---|
| Bedrock 15W-40 Synthetic Blend Heavy-Duty Engine Oil15W-40 | BED15W40G | BED15W402G | BED15W405G | BED15W4055G | BED15W40TG |
| Bedrock 10W-30 Synthetic Blend Heavy-Duty Engine Oil10W-30 | BED10W30G | — | — | BED10W3055G | BED10W30TG |
| Bedrock 15W-50 Synthetic Blend Heavy-Duty Engine Oil15W-50 | — | BED15W502G | — | — | — |
| Bedrock 20W-50 Synthetic Blend Heavy-Duty Engine Oil20W-50 | — | — | — | — | BED20W50TG |
| Bedrock SAE 30 Non-Detergent Motor OilSAE 30 ND | — | — | BEDND305G | — | — |
Swipe sideways to see every size →
Order by Bedrock part number from your dealer.
Frequently asked questions
When should I run a 15W-50 instead of a 15W-40?
When the engine maker's viscosity chart allows a 15W-50 and the engine is running hot or using oil on a 15W-40. Typical cases are older engines, equipment that idles for hours in summer heat, and stationary engines at steady high load. If the chart does not list a 15W-50, stay on the 15W-40.
Is a 15W-50 harder on cold starts than a 15W-40?
No. Both oils carry the same 15W winter rating, so they are rated the same for cold starting. The 15W-50 only becomes thicker than the 15W-40 once the engine is at operating temperature.
Will Bedrock 15W-50 stop my engine from using oil?
A heavier grade can slow oil consumption in a worn engine, but it does not repair worn rings, seals or valve guides. If consumption keeps climbing, have the engine checked. Use the 15W-50 only where the engine maker allows it.
Specifications and typical properties are stated on each product's data sheet; follow the equipment maker's service recommendations.
Other Bedrock families
More from Bedrock
Find a dealer
TTM Diesel in Houston stocks the line; more dealers are being added.
Read more →
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 15W-40 Synthetic Blend Heavy-Duty Engine Oil
SAE 15W-40 synthetic blend diesel engine oil for on-highway trucks, diesel pickups and off-road equipment
Read more →