A Full Look at Consistency and NLGI Grades for Car Lubricant Grease

It is important to keep moving parts from getting stuck, so lubricant grease is an important part of car care.

A Full Look at Consistency and NLGI Grades for Car Lubricant Grease

It is important to keep moving parts from getting stuck, so lubricant grease is an important part of car care. What about the different kinds of automotive lubricants grease and how they are put into groups? Did you ever think about that? Here are the grades and complete insight into the grades and NLGI chart for complete understanding. 

What is the NLGI Grade Chart?

The NLGI grade chart is a popular way to talk about how thick grease is. There is a range from 0 to 6, with 0 being the mildest and 6 being the hardest. This scale helps engineers and mechanics pick the right automotive lubricants or grease for each job so that the best safety and lubrication can be achieved.

NLGI Grades and Their Consistencies

NLGI 000 Fluid 445-475 ASTM, like ketchup

The thinnest and most flowing choice is grease which has the same viscosity as cooking oil. Because it has a high flow rate, centralized lubrication devices often use it to pump grease over long distances. Also, high-speed bearings and precise tools are two uses that can benefit from NLGI 000's low resistance and viscosity.

NLGI 00- 400-430 ASTM, Semi-Fluid, like yoghurt 

The thickness of this grade is a bit thicker than NLGI 000, but it still flows like applesauce. It works well with gears and bearings that move at a modest speed because it is neither too thick nor too easy to pump. It lubricates and shields well and is easy to spread because it has a semi-fluid consistency.

NLGI 0- 355-385 ASTM -Soft like Brown Mustard

A lot of people choose NLGI 0 grease, which has the consistency of brown mustard, to take care of their cars. Because it is easy to pump and sticks well to surfaces, it is a great choice for lubricating general-use parts like frames, wheel bearings, and other mechanical parts. Because the lube is soft, it is smooth and even, and it also cuts down on friction and wear.

NLGI Grade

Consistency

Common Applications

000

Fluid, like cooking oil

Tools for accurate measurements, centralized devices for lubrication, and high-speed bearings

00

Semi-fluid, like applesauce

Gearboxes and bearings help move them at a moderate speed

0

Soft, like brown mustard

Several uses in cars, such as lubricating the frame and wheel bearings

1

Very soft, like tomato paste

Universal joints and CV joints are two types of parts that can move and vibrate.

2

"Normal" grease, like peanut butter

Use for wheel bearings, general-purpose lubrication

And chassis, 

3

Firm, like vegetable shortening

This is for high-temperature applications, heavy loads, industrial machinery, and high-performance bearings

4

Very firm, like frozen yoghurt

This is best for mining equipment, construction machinery, and applications that are exposed to water washout.

5

Hard, like smooth pate

Things that move slowly, heavily loaded bearings, and ways to use grease

to stay in place

6

Very hard, like cheddar cheese

Extreme pressure applications, minimal leakage, steel mill equipment, mining machinery

NLGI 1-310-340 ASTM- Very Soft, like Tomato Paste

This grade is a bit harder than NLGI 0 and has a thickness about the same as tomato paste. Because it is the best mix of pumpability and stickiness, it can be used in situations that need high flow rates with low displacement resistance. This type of grease, NLGI 1, works great for CV, universal, and other parts that move because of its properties.

NLGI 2- 265-295 ASTM "Normal" Grease, like Peanut Butter

You can think of NLGI 2 grease as peanut butter. It is more flexible than other types of grease. For the most part, it's thought to be the norm in the field. It can be used in many ways in the automotive business because it has the best mix of pumpability, adhesion, and shear stability. NLGI 2 oil is often used to clean wheel bearings and engine parts, as well as other general tasks. The reason for this is that it works well and is effective.

NLGI 3- 220-250 ASTM, Firm, like Margarine Spread

Like veggie shortening, this kind is harder to work with. This is a great choice for uses that need a more durable grease, like those that are exposed to high temperatures or big loads. NLGI 3 grease is often used in industrial machinery, high-performance bearings, and parts that work in harsh settings because it makes things more stable and can hold more weight.

NLGI 4- 175-205 ASTM, Very Strong, Like Hard Ice Cream

The NLGI 4 grease, which feels like frozen yoghurt, is great for jobs that need a lot of stickiness and resistance to water washing away. The tough texture will keep it in place and moisten for hours, no matter how rough the ground is. The dependability of NLGI 4 grease is often counted upon in outdoor settings where dirt or water can get in, like on mining equipment and construction machinery.

NLGI 5 130-160 ASTM,  like Smooth Fudge

This grade has a hard firmness and a texture that is like smooth pate. The best grease for this job is one that needs to stay put and not move around when things move slowly or when they are heavy. NLGI 5 grease is good for parts that are under a lot of pressure, like gears that move slowly or bearings that are heavy. This is because the film is strong and stable.

NLGI 6- 85-115 ASTM, Very Hard, like Cheddar Cheese

In terms of texture, NLGI 6 grease is like cheddar cheese. It is the hardest grade on the NLGI table. The way it's made makes it perfect for uses that need high-pressure protection and low leakage. For its excellent performance, NLGI 6 grease is often used in steel mill equipment, mining equipment, and other heavy-duty machines that work in difficult conditions.

Choosing the Right NLGI Grade

When picking the correct NLGI grade for your car, you should think about the intended use, the conditions of use, and the manufacturer's suggestions. It is important to check the owner's instructions or talk to a professional mechanic to make sure you use the right lubricant for your car's performance and longevity.

To properly maintain your car, you need to know about the NLGI grade table and the different types of rubbing grease for cars. If you pick the right NLGI grade for your car, 

you can get the most out of the oil, cut down on wear and tear, and make parts last longer.

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