What is a lubricant?

A lubricant is a substance, usually in the form of a liquid or a semi-solid, that is applied between two surfaces in contact to reduce friction and wear.

What is the Role & Function of Lubricant?

• Improves engine efficiency by reducing friction
• Protects against wear and prolongs life
• Keeps the engine clean
• Cools the parts

What are the specific standards required for the vehicle lubricants?

• They facilitate cold starts and reduce wear (20 to 30% of engine wear occurs between ignition and optimal engine temperature)
• They increase engine life
• They promote fuel economy by reducing friction between moving parts
• They contribute to better engine performance

What are the specific standards required for the vehicle lubricants?

Each of the standards in the automotive sector designates lubricant characteristics and performance. ACEA (Association of European Automobile Manufacturers) performances and manufacturer approvals help you choose the lubricant that best suited to your needs in compliance with the technical requirements of your vehicle.

Advice on how to read National Lub Lubricant Labels.

National Lub product labels inform you about all of the characteristics of the selected lubricant. However, it is necessary to understand the codes and names used. The first information you find is the viscosity grade:

• For industrial oils, the viscosity is expressed by its ISO VG number
• For transmission oils, the viscosity is expressed as a SAE

Should different lubricants be mixed?

Each lubricant consists of different characteristics and a specific formulation. They are not all mixable or compatible. This means that mixing two products can cause performance deterioration. As this is a “case by case” issue, we advise you to consult the detailed technical data on the label of the lubricant used and to never make hazardous mixes that could harm your engine, the environment or your health!

Why it is important to maintain the correct oil Level??

• You must be extremely careful about your engine’s oil level. Check and monitor oil levels on a regular basis. If your engine oil level is too low, there is a risk that the oil film will fail. This will result in premature wear or engine failure. But there is also a risk if the oil level is too high, because the crankshaft can come into contact with the oil, which can severely damage the engine.

How Often Should You Change Your Oil?

National Lub lubricants allow for a much longer interval between services — from 5,000 to 7,500 miles if your car uses full-synthetic motor oil

What is the difference between Mineral Oil and Synthetic Oil?

Mineral oils and synthetic oils have a common base: crude base oil. They differ as follows:
– Synthetic oil undergoes chemical treatment which improves its structure
– Mineral oil is obtained through the refining process

Do Automotive lubricant have an expire date?

When the lubricant is stored in the appropriate environment, that is to say, at room temperature away from light and the moisture from its original packaging, it has no expiry date. However, the bottle must be closed.

Can Motor oil be used in a gearbox??

• No, the majority of gearboxes require special formulated lubricant for the transmission system. We suggest National Gear Oil 90 & 140 & National ATF 10W

Coolant : mixing, differences and compatibility

Cooling fluids are sometimes incompatible with each other since they are made using various advanced technologies (e.g. organic and inorganic).If you do not follow the manufacturer’s recommendations this may cause corrosion problems in your cooling system and eventually cause engine overheating. National Radiant Coolant is here to keep your engine cool.