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Get to know the Chevron Greases

Lithium Complex

Extra-duty, heavy-duty, and extreme pressure applications.

Simple Lithium

Heavy-duty multi-purpose greases for extreme pressure applications.

Polyurea

For filled-for-life and high-speed motor applications.

Specialty

Extra-duty product for sprayable applications.

Calcium Sulfonate Complex

Outstanding oxidation and thermal stability.

Learn more about grease

Main Qualities of Grease

Qualities that are measured & rated:

  • Consistency
  • Viscosity
  • Heat Resistance
Consistency

The measure of consistency is called penetration. This grease classification is assigned by the National Lubricating Grease Institute (NLGI) and measured with a tool called a penetrometer instrument.

Viscosity

Viscosity is the most important characteristic of grease. Like other lubricants, base oil primarily provides the lubricant film, but it’s the thickener that holds it together. Film thickness is a result of viscosity. When increasing the speed of rotation, the viscosity will need to decrease to provide a more protective film thickness and create a greater resistance to flow.

The classification system for grease viscosity was established by the International Standards Organization (ISO) and is determined using a tool called a viscometer.

Heat Resistance

Heat resistance identifies at what temperature the performance of grease is compromised. This measurement process and the quality control benchmarks are developed by the American Society for Testing Materials (ASTM) and is called the Dropping Point.

The Dropping Point identifies the maximum temperature when grease transforms from a semi solid to a liquid and loses its protective qualities. This measurement is determined using a thermometer and aluminum block oven.

How experts measure the Dropping Point

Grease is applied to the wall of a test cup.

Oven temperature is selected as defined by ASTM.

The “dropping point” of the grease is when one (1) drop of oil falls from the test cup.

Grease thickening agents explained

Thickening agents are minerals or synthetic materials that are added to liquid lubricants (base oil) in order to transform the compound into a semi-solid grease form. Different thickening agents create different consistencies of grease.

Simple Lithium

Simple Lithium greases are a good general-use product with low-temperature properties such as pumpability and good working stability. It’s good for load-carrying, shear stability and is water resistant.

Chevron Ultra-Duty HD

Chevron Multifak®

Lithium Complex

Lithium complex greases provide excellent oxidation and thermal stability performance at high operating temperatures. They provide good water resistance and load carrying properties, but are less effective with cold temperature pumpability.

Chevron Starplex® EP

Chevron Starplex® HD

Lithium Complex with Molybdenum Disulfide

Comprehensive line of greases that are available with molybdenum disulfide. These greases are designed for plain and anti-friction bearing applications operating under high stress/high load conditions, coupled with high ambient temperatures typically found in heavy duty off-road applications.

Chevron Starplex® HD M3

Chevron Starplex® HD M5

Polyurea

Polyurea greases are non-metallic with antioxidant capabilities. They provide good thermal stability and high-temperature performance but are less effective for shear stability. Polyurea greases are an ideal choice for sealed-for-life applications.

Chevron Black Pearl®

Specialty

Calcium-based grease that resists washout and provides good film strength and load carrying capabilities.

Chevron Texclad®

Calcium Sulfonate Complex

Calcium sulfonate complex greases offer superior attributes in most product performance attributes. They provide outstanding oxidation and thermal stability at higher operating temperatures, as well as water resistance and load carrying properties.

Chevron Rykon® EP

Chevron Rykon® HD

What is grease Water Washout?

Water Washout is a dynamic test where 4 grams of grease are packed into a ball bearing, and assembled in the test apparatus. The bearing is rotated at 600 rpm, and water that has been heated to 38°C (100°F) is sprayed on the shielded bearing for one hour. The apparatus is disassembled and allowed to dry and weighed. The amount of grease washed out is calculated and reported as percent loss. The lower the number the better and indicates better water resistance.

NLGI Consistency Numbers

NLGI Number ASTM worked (60 strokes)
penetration at 25 °C
tenths of a millimetre		 Appearance Food Consistency Analogy
000 445-475 Fluid Cooking Oil
00 400-430 Semi-Fluid Apple Sauce
0 355-385 Very Soft Brown Mustard
1 310-340 Soft Tomato Paste
2 265-295 “Normal” Grease Peanut Butter
3 220-250 Firm Vegetable Shortening
4 175-205 Very Firm Frozen Yogurt
5 130-160 Hard Smooth Pâté
6 85-115 Very Hard Cheddar Cheese

What is grease Water Spray Off?

Water Spray Off is a static test where a known amount of grease is put on a metal plate and water at 100°F (38°C) is sprayed on the grease at 40psi for 5 minutes. The test temperature can vary at customer request. The results are reported as percent loss. The lower the number the better.

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