Common Grease Colors and General Uses

While grease colors often hint at specific properties like high heat or water resistance, there is no universal industry standard, and colors are added primarily for visual identification and branding. Common color associations include red for high temperatures, blue for marine use, and black/gray for heavy loads.

Red Grease:

Often lithium-complex based.
Used for general automotive suspension, steering joints, wheel bearings, and universal joints.
Handles moderate-to-high temperature ranges.

Black or Gray Grease:

Contains solids, like molybdenum disulfide ("moly") or graphite.
Used for extreme pressure, heavy loads, and sliding friction.
Common in construction, mining equipment, and CV joints.

Blue Grease:

Frequently formulated for marine or damp environments.
Used for boat trailer wheel bearings, marine water pumps, inboard and outboard stern drives, and outdoor pivots.
Known for strong water washout resistance.

Clear or White Grease:

Typically indicates food-grade (NSF H1 certified) lubricants.
Used in food processing, bottling plants, hinges, and light household tracks.
Designed to remain clean and non-staining.

Green or Yellow Grease:

Frequently used for specialized industrial or eco-friendly/biodegradable options.
Found in agricultural or forestry machinery.

Important Selection Warning - Never rely on the color of grease alone to choose a lubricant. Always check the product's label for thickener type (e.g., lithium, polyurea, calcium sulfonate), base oil viscosity, and performance ratings.

Why industrial greases come in different colors (YouTube link): https://youtube.com/shorts/XLAD_4oFn3E?is=7f-2bmURx4zmhFNR.