631E Series II Wheel Tractor-Scrapers Lubricant Viscosities Caterpillar


Lubricant Viscosities
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1.1. General Information for Lubricants
2.1. Selecting the Viscosity
3.1. Engine Oil
4.1. Other Oil Applications
5.1. Grease Applications
6.1. Diesel Fuel Recommendations
7.1. Fuel Additives
8.1. Biodiesel
9.1. Coolant Information

General Information for Lubricants

When you are operating the machine in temperatures below −20°C (−4°F), refer to Special Publication, SEBU5898, "Cold Weather Recommendations". This publication is available from your Cat dealer.

For cold-weather applications where transmission oil SAE 0W-20 is recommended, Cat TDTO Cold Weather is recommended.

Refer to the “Lubricant Information” section in the latest revision of the Special Publication, SEBU6250, "AVSpare Machine Fluids Recommendations" for a list of Cat engine oils and for detailed information. This manual may be found on the Web at Safety.Cat.com.

The footnotes are a key part of the tables. Read ALL footnotes that pertain to the machine compartment in question.

Selecting the Viscosity

In order to select the proper oil for each machine compartment, refer to the "Lubricant Viscosity for Ambient Temperature" table. Use the oil type AND oil viscosity for the specific compartment at the proper ambient temperature.

The proper lubricant viscosity grade is determined by the minimum outside temperature when the machine is started. The proper lubricant viscosity grade is also determined by the maximum outside temperature while the machine is operated. Use the column on the table that is designated "Min" in order to determine the lubricant viscosity grade that is required when you start a cold machine and when you operate a cold machine. Use the column on the table that is designated "Max" to select the lubricant viscosity grade when you operate the machine at the highest temperature that is anticipated. When you start the machine, use the oil with the highest lubricant viscosity that is allowed for the temperature.

Machines that are continuously operated should use the oils with a higher viscosity in the final drives and differentials in order to maintain the highest possible oil film thickness. Refer to “General Information for Lubricants” article, “Lubricant Viscosities” tables, and any associated footnotes. Consult your Cat dealer if additional information is needed.


NOTICE

Not following the recommendations found in this manual can lead to reduced performance and compartment failure.


Engine Oil

AVSpare oils have been developed and tested in order to provide the full performance and life that has been designed and built into Cat engines.

Cat DEO-ULS multigrade and Cat DEO multigrade oils are formulated with the correct amounts of detergents, dispersants, and alkalinity in order to provide superior performance in Cat diesel engines where recommended for use.

Note: SAE 10W-30 is the preferred viscosity grade for the 3116, 3126, C7, C-9, and C9 diesel engines when the ambient temperature is between -18° C (0° F) and 40° C (104° F).

Table 1
Cat Diesel Engines Lubricant Viscosities for Ambient Temperatures 
Compartment or System  Oil Type and Performance Requirements  Oil Viscosities  °C  °F 
Min Max Min Max 
Engine Crankcase for all Direct Injection (DI) Engines  Cat DEO Cold Weather (API CK-4)  SAE 0W-40  −40  40  −40  104 
Cat DEO-ULS SYN (API CK-4) SAE 5W-40  −30  50  −22  122 
Cat DEO-ULS (API CK-4)
Cat DEO (API CI-4/CI-4 PLUS)
SAE 10W-30  −18  40  104 
SAE 15W-40 −10  50  14  122 

When fuels of sulfur level 0.1 percent (1000 ppm) or higher are used, Cat DEO-ULS may be used if an oil analysis program is followed. Base the oil change interval on the oil analysis.

Other Oil Applications

Refer to the “Lubricant Information” section in the latest revision of the Special Publication, SEBU6250, "AVSpare Machine Fluids Recommendations" for a list of Cat engine oils and for detailed information. This manual may be found on the Web at Safety.Cat.com.

Cat HYDO Advanced fluids are the preferred oils for use in Cat machines hydraulic systems.

Cat HYDO Advanced fluids have a 50% increase in the standard oil drain interval for machine hydraulic systems (3000 hours versus 2000 hours) over second and third choice oils when you follow the maintenance interval schedule for oil filter changes and for oil sampling that is stated in the Operation and Maintenance Manual for your particular machine. 6000 hour oil drain intervals are possible when using S·O·S Services oil analysis. Consult your Cat dealer for details. When switching to Cat HYDO Advanced fluids, cross contamination with the previous oil should be kept to less than 10%.

Table 2
Wheel Tractor-Scrapers Lubricant Viscosities for Ambient Temperatures 
Compartment or System  Oil Type and Performance Requirements  Oil Viscosities  °C  °F 
Min Max Min Max 
Hydraulic System  CatHYDO Advanced 10
Cat HYDO Advanced 30
Cat BIO HYDO Advanced
Cat MTO
Cat DEO-ULS
Cat DEO
Cat DEO-ULS SYN
Cat DEO SYN
Cat TDTO
Cat TDTO-TMS
Cat Cold Weather DEO-ULS
Cat Cold Weather TDTO
Cat ECF-1-a, Cat ECF-2, Cat ECF-3, Cat TO-4, Cat TO-4M, Cat BF-2 
SAE 0W-20  −40  40  −40  104 
SAE 0W-40 −40 40  −40  104 
SAE 0W-30 −40 40  −40  104 
SAE 5W-40 −30 40  −22  104 
SAE 10W −20 50  −4  122 
SAE 30 10 50  50  122 
Bio HYDO Advanced −40 40  −40  104 
SAE10W-30 −20 40  −4  104 
SAE15W-40 −15 50  122 
Cat MTO −20 40  −4  104 
Cat TDTO-TMS −15 50  122 
Transmission  Cat TDTO
Cat TDTO-TMS
Cat Cold Weather TDTO
Cat TO-4, Cat TO-4M 
SAE 0W-20  −40  10  −40  50 
SAE 10W −20  10  −4  50 
SAE 30 35  32  95 
SAE 50 10  50  50  122 
Cat TDTO-TMS −20  43  −4  110 
Nondriven Scraper Wheels except for 613G  Cat FDAO
CatFDAO SYN
Cat TDTO
Cat TDTO-TMS
Cat FD-1, Cat TO-4, Cat TO-4M 
SAE 60  −7  50  19  122 
SAE 50 −15 32  90 
SAE 30 −25 15  −13  59 
Cat TDTO-TMS −35 15  −31  59 
Cat FDAO SYN −15 50  122 
Nondriven Scraper Wheels for 613G  Cat Multipurpose Grease  NLGI 2  −30  40  −22  104 
Nondriven Scraper Wheels
(Towed Scrapers) 
Cat GO (Gear Oil)
Cat Synthetic GO
API GL-5 gear oil 
SAE 75W-90  −30  40  −22  104 
SAE 75W-140 −30 45  −22  113 
SAE 80W-90 −20 40  −4  104 
SAE 85W-140 −10 50  14  122 
SAE 90 0 40  32  104 
Differentials and Final Drives, Auger Lower Bearings, Auger and Elevator Speed Reducers
Elevator Lower Rollers 
Cat GO (Gear Oil)
Cat Synthetic GO
API GL-5 gear oil 
SAE 75W-90  −30  40  −22  104 
SAE 75W-140 −30 45  −22  113 
SAE 80W-90 −20  40  −4  104 
SAE 85W-140 −10  50  14  122 
SAE 90 40  32  104 

Grease Applications

Table 3
Type of Cat Grease 
Application Point  Typical Load and Speed  Load Factor  Ambient Temperature Range  NLGI Grade  Grease Type 
° C ° F 
Min Max  Min  Max 
Brake Camshaft Bearings, Drive Shaft Slip Spline, Ejector Carrier and Support Rollers, Sprocket Shaft Support Bearings  High  Continuous high total resistance conditions with steady cycling.  −35  40  −31  104  Cat Ultra 5Moly Grease 
−30 50  −22  122 
Medium Typical road building use.  −20  40  −4  104  Cat Advanced 3Moly Grease 
Low Average use but with considerable idling, favorable grades, low rolling resistance and easy loading material.  −30  40  −22  104  Cat Multipurpose Grease 
Structure Joints (Articulation, Cushion Hitch, Oscillation, Steering)  High  Continuous high total resistance conditions with steady cycling.  −35  40  −31  104  Ultra 5Moly Grease 
−30 50 −22 122 
Medium Typical road building use.  −20  40  −4  104  Advanced 3Moly Grease 
Fan Drive Bearings      −20  40  −4  104  Cat High Speed Ball Bearing Grease 

Reference: Refer to Special Publication, SEBU6250, "AVSpare Machine Fluids Recommendations" for additional information about grease. This manual may be found on the Web at Safety.Cat.com.

Diesel Fuel Recommendations

Diesel fuel must meet AVSpare Specification for Distillate Fuel and the latest revisions of "ASTM D975-09a" and "EN 590" in order to ensure optimum engine performance. Refer to Special Publication, SEBU6250, "AVSpare Machine Fluids Recommendations" for the latest fuel information and for AVSpare fuel specification. This manual may be found on the Web at Safety.Cat.com.

The preferred fuels are distillate fuels. These fuels are commonly called diesel fuels, furnace oil, gas oil, or kerosene. These fuels must meet the AVSpare Specification for Distillate Fuel For Off-Highway Diesel Engines. Diesel fuels that meet the AVSpare will help provide maximum engine service life and performance. This manual may be found on the Web at Safety.Cat.com.

Misfueling with fuels of high sulfur level can have the following negative effects:

  • Reduce engine efficiency and durability.

  • Increase the wear.

  • Increase the corrosion.

  • Increase the deposits.

  • Lower fuel economy

  • Shorten the time period between oil drain intervals (more frequent oil drain intervals).

  • Increase overall operating costs.

  • Negatively impact engine emissions

Failures that result for the use of improper fuels are not AVSpare factory defects. Therefore, the cost of repairs would not be covered by a AVSpare warranty.

AVSpare does not require the use of ULSD in non-road and machine applications that are not Tier 4/Stage IIIB/ Stage IV certified engines and are not equipped with aftertreatment devices. Follow operating instructions and fuel tank inlet labels, if available in order to ensure that the correct fuels are used..

Refer to Special Publication, SEBU6250, "AVSpare Machine Fluids Recommendations" for more details about fuels, lubricants. This manual may be found on the Web at Safety.Cat.com.

Fuel Additives

Cat Diesel Fuel Conditioner and Cat Fuel System Cleaner are available for use when needed. These products are applicable to diesel and biodiesel fuels. Consult your Cat dealer for availability.

Biodiesel

Biodiesel is a fuel that can be made from various renewable resources that include vegetable oils, animal fat, and waste cooking oil. Soybean oil and rapeseed oil are the primary vegetable oil sources. In order to use any of these oils or fats as fuel, the oils or fats are chemically processed (esterified). The water and contaminants are removed.

U.S. distillate diesel fuel specification "ASTM D975-09a" includes up to B5 (5 percent) biodiesel. Currently, any diesel fuel in the U.S. may contain up to B5 biodiesel fuel.

European distillate diesel fuel specification "EN 590" includes up to B5 (5 percent) and in some regions up to B7 (7 percent) biodiesel. Any diesel fuel in Europe may contain up to B5 or in some regions up to B7 biodiesel fuel.

Note: Up to B20 biodiesel blend level is acceptable for use in Motor Grader engines.

Note: The diesel portion used in the biodiesel blend must be Ultra Low Sulfur Diesel (ULSD) fuel 0.0015 percent (≤15 ppm (mg/kg)) or less per "ASTM D975-09a". In Europe the diesel fuel portion used in the biodiesel blend must be sulfur free diesel ULSD 0.0010 percent (≤10ppm (mg/kg) or less per "EN 590". The final blend must have (≤15 ppm (mg/kg)) sulfur or less.

When biodiesel fuel is used, certain guidelines should be followed. Biodiesel fuel can influence the engine oil, aftertreatment devices, non-metallic components, fuel system components, and others. Biodiesel fuel has limited storage life and has limited oxidation stability. Follow the guidelines and requirements for engines that are seasonally operated and for standby power generation engines.

In order to reduce the risks associated with the use of biodiesel, the final biodiesel blend and the biodiesel fuel must meet specific blending requirements.

All of the guidelines and requirements are provided in the latest revision of Special Publication, SEBU6250, "AVSpare Machine Fluids Recommendations". This manual may be found on the Web at Safety.Cat.com

Coolant Information

The information provided in this “Coolant Recommendation” section should be used with the “Lubricants Information” provided in the latest revision of Special Publication, SEBU6250, "AVSpare Machine Fluids Recommendations". This manual may be found on the Web at Safety.Cat.com.

The following two types of coolants may be used in Cat diesel engines:

Preferred - Cat ELC (Extended Life Coolant)

Acceptable - Cat DEAC (Diesel Engine Antifreeze/Coolant)


NOTICE

Never use water alone as a coolant. Water alone is corrosive at engine operating temperatures. In addition, water alone does not provide adequate protection against boiling or freezing.