Caterpillar has revised its Machine Fluids Recommendations Bulletin, SEBU6250 (now Rev 26, en-us), dated October 2017, which covers Caterpillar's most current recommendations and specifications for lubricants, fuels and cooling system fluids for use in Caterpillar machines. The lubricant section alone is 79 pages in length. The remainder of the bulletin, now 152 pages in total, covers fuel specifications, cooling system specification, exhaust aftertreatment specification, contamination control and warranty information, followed by a reference material section.
These recommendations are for Caterpillar machines, such as those used in earthmoving and other off-highway applications, as well as forestry, mining, agriculture, and other applications. The Cat machines included in this bulletin include dozers, loaders, excavators, shovels, motor graders, scrapers, off-highway trucks, pipe layers, telehandlers, compactors, pavers, underground mining equipment, etc.
The fluids include those for use in Cat engines, hydraulic systems, transmissions/drive train, final drives, axles, differentials, hydrostatic transmissions, automatic transmissions, gears, and components requiring grease lubrication.
Caterpillar branded fluids are described in detail and are recommended for use "to increase the performance and life of Caterpillar components" as stated by Caterpillar in the brochure, although other commercially available oils meeting Caterpillar's requirements are allowed. The Caterpillar recommended oils and greases listed and described in detail in this bulletin include the following:
Cat DEO-ULS (Diesel Engine Oil - Ultra Low Sulfur, API CK-4, SAE 15W-40, 10W-30)
Cat DEO-ULS SYN (Synthetic Diesel Engine Oil, SAE 15W-40)
Cat DEO Cold Weather (SAE 0W-40)
Cat DEO (Diesel Engine Oil, API CI-4/API CI-4 PLUS, SAE 15W-40 & 10W-30)
Cat MAEO Plus (Multi Application Engine Oil for Non-Cat mixed fleets, SAE 10W-40)
Cat DEO (SAE 40 for 3600 engines only, API CF)
Cat PCO (Precombustion Chamber Oil, SAE 40)
Cat TDTO (Transmission/Drive Train Oil, SAE 10W, 30, and 50)
Cat TDTO-TMS (Transmission/Drive Train Oil, Multigrade)
Cat TDTO Cold Weather (SAE 0W-20)
Cat SATO (Special Application Transmission Oil, Multigrade)
Cat ATF-HD2 (Multigrade Synthetic)
Cat FDAO (Final Drive and Axle Oil, SAE 60)
Cat FDAO SYN (Final Drive Axle Oil, Synthetic, Multigrade)
Cat GO (Gear Oil, SAE 80W-90 & 85W-140)
Cat Synthetic GO (Synthetic Gear Oil, SAE 75W-140)
Cat HYDO (Hydraulic) Advanced (SAE 10W, 20W, and 30)
Cat Bio HYDO Advanced (HEES, ISO 46 Multigrade)
Cat MTO (Multipurpose Tractor Oil, SAE10W-30)
Cat Utility Grease
Cat Prime Application Grease (contains 3% Moly)
Cat Extreme Application Grease (contains 5% Moly)
Cat Extreme Application Grease - Desert (contain 5% Moly)
Cat Extreme Application Grease - Arctic (Semi-Synthetic, contains 5% Moly)
Cat Ball Bearing Grease
Cat White Assembly Grease
Cat Hammer Paste
Note: Cat offers Special Application Engine Oil, API CF oil of SAE 30 and SAE 40 viscosity grades. These oils are recommended for use in 3116 and 3126 marine engines
As eluded to above, when Caterpillar branded lubricants are not available, commercially available lubricants such as engine oils meeting API CK-4 and Caterpillar's Engine Crankcase Fluid (ECF) specifications are allowed, the three current ones being ECF-1-a, ECF-2 and ECF-3. The ECF-3 provides the highest level of performance of the three, is preferred, and is required for use in non-road Tier 4 certified engines that are equipped with aftertreatment devices.
For other compartments, when Cat branded lubricants are not available, suitable commercially available lubricants are also allowed for lubrication of the other components and systems.
Note: API FA-4 oils are not allowed for use in any Cat engines.
This bulletin includes tables showing specific lubricant recommendations and viscosities for various ambient temperatures for all compartments of all Caterpillar equipment, i.e., articulated trucks, backhoe loaders, excavators, front shovels, mass excavators, track material handlers, mini-hex, forestry equipment, motor graders, off highway trucks, paving equipment, pipe layers, skid steer, telehandlers, track type loaders, track type tractors, underground mining equipment, wheel excavators and wheel material handlers, wheel loaders, integrated toolcarriers, wheeled dozers, and wheeled compactors, wheel tractor scrapers, etc.
The bulletin also includes information on TBN, fuel sulfur levels, grease application charts (type of Cat grease by machine category), use of synthetic oils, use of re-refined oils, use of aftermarket oil additives, use of Biodiesel in Caterpillar engines, oil sampling intervals, determining optimum change intervals, and information on exhaust aftertreatment fluids, coolants and fuels.
To view the complete SEBU6250-26 in pdf format please click here