Bedrock 20W-50
SYNTHETIC BLEND
HEAVY-DUTY ENGINE OIL
BUILT FOR EVERY LOAD.
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
Bedrock 20W-50 is a synthetic blend heavy-duty engine oil and the heaviest multigrade in the Bedrock engine oil line. Both numbers in the grade are higher than those of the 15W-40: the oil is thicker when cold and much thicker at operating temperature. That makes it a warm-weather and hard-service grade, chosen on purpose for engines whose maker lists a 20W-50 and never as a general substitute for the everyday 15W-40.
Older diesel engines built before today's tight clearances and equipment that works in constant heat are where a 20W-50 grade is still specified. The thicker film at operating temperature cushions worn bearings and keeps oil pressure up at hot idle, and it slows consumption past worn rings. Along the Gulf Coast, where the hot months run long, operators with aging equipment keep this grade in the shop for the engines that need it.
Bedrock 20W-50 is packaged only in the 275-gallon tote, which suits operations that fill from bulk: equipment yards, oilfield service companies and large shops. A fleet that needs a heavier oil for a few engines but does not buy by the tote should look at Bedrock 15W-50 in the 2-gallon jug.
Sheets are sent by email on request.
Applications
- Older mechanical diesel engines in trucks and equipment whose maker lists a 20W-50 for warm weather
- High-hour construction and oilfield equipment that runs loaded in constant heat
- Stationary engines on pumps, compressors and generators at steady high load where a 20W-50 is specified
- Worn engines using oil on a lighter grade, where the maker's viscosity chart allows a 20W-50
- Agricultural engines running long summer days in dusty, hot field conditions where the manual names a 20W-50
- Equipment yards and shops with bulk oil systems that keep a heavy grade on hand for aging units
Performance
- Keeps the thickest oil film in the Bedrock engine oil line between bearings, rings and cylinder walls at operating temperature
- Helps hold oil pressure at hot idle in engines with worn clearances
- Slows oil consumption past worn rings and guides where the engine maker allows a heavier grade
- Resists thinning and oxidation through long days of loaded work in high ambient heat
- Holds soot and combustion by-products in suspension until the oil is drained
- Formulated for use where a 20W-50 heavy-duty engine oil is specified
Specifications
Bedrock 20W-50 is an SAE 20W-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 20W-50 are listed on the Product Data Sheet, available on request from [email protected].
Packages and part numbers
| Package | Part number | Case pack | |
|---|---|---|---|
| 275-gallon tote | BED20W50TG | Single |
Bedrock 20W-50 comes in one package, the 275-gallon tote.
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 15W-50 Synthetic Blend Heavy-Duty Engine Oil
SAE 15W-50 synthetic blend heavy-duty engine oil, a heavier grade for engines whose maker allows a 15W-50
Learn more about Bedrock 15W-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
Who should be running a 20W-50?
Operators of older or high-hour engines, and of equipment that works loaded in constant heat, when the engine maker's viscosity chart lists a 20W-50 for those conditions. It is not a substitute for the 15W-40 in a current on-highway truck. If the chart does not list it, do not use it.
Why is Bedrock 20W-50 only sold in a tote?
The 275-gallon tote fits the equipment yards and large shops that use this grade from bulk. For a few engines on a heavier grade, Bedrock 15W-50 comes in the 2-gallon jug.
Can I run a 20W-50 in winter?
Only where the engine maker's chart allows it at your starting temperatures. A 20W is thicker on a cold start than a 15W or a 10W, so most makers list the 20W-50 for warm weather and a lighter grade for the cold months. Along the Gulf Coast that often means 20W-50 in summer and 15W-40 the rest of the year, if the chart agrees.
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-50 Synthetic Blend Heavy-Duty Engine Oil
SAE 15W-50 synthetic blend heavy-duty engine oil, a heavier grade for engines whose maker allows a 15W-50
Read more →