Maroil S.r.l - Bardahl Italia


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Excessive fuel consumption?

Excessive fuel consumption?

Some tips to prepare the bike for the new spring and summer season

How to prepare the manual oil mixture for 2-stroke engines?

Maintenance of shock absorbers: what is meant by "exhaust shock absorber"?

Brakes, oil or tires are the elements to which we certainly devote more attention, just as much care should be reserved for the shock absorbers. These, together with brakes and tires, are defined as the "safety triangle" of each vehicle, the maintenance of forks and shock absorbers is therefore essential in both the racing and road sectors.

Inside a shock absorber there is a gas tank: a small chamber separated from the oil by a piston or a membrane, which constantly holds the oil under pressure. When the gas pressure is lost with use, the shock absorber is said to be "exhausted". The loss of pressure inside the shock absorber can lead to the formation of foam in the oil and consequently an apparent strong loss of viscosity. This compromises the performance of the shock absorber resulting "too soft" and generating an uncontrolled stroke.
To prevent this phenomenon, it is important to proceed with constant maintenance of the shock absorbers through the replacement of components and oil. Bardahl lubricants are equipped with the best anti-foam and anti-friction additives to ensure maximum driving comfort and safety.
Discover all the fork and shock absorber oils —>

How do i choose the right oil for my vehicle/motorcycle?

The owner’s manual of any automobile/motorcycle outlines the specifications and SAE viscosity classes that lubricants need to meet to be safely used with that vehicle. These specifications are always indicated on lubricant packaging as well.

What is a specification?

It is an abbreviation that provides guidance on the qualitative characteristics of a lubricant and its designated uses. Each specification is the result of extensive testing (including motor and laboratory tests) which the lubricant must pass in order to meet certain basic performance requirements. For more information, see the dedicated automobile and motorcycle lubricants page.

How do I evaluate oil performance?

By correctly reviewing the product specifications, you can get information on and understand the basic quality levels a lubricant meets or exceeds. However, this indication does not specifically tell you by how much a lubricant may exceed the minimum standard. Lubricants that meet the same minimum level are thus often incorrectly considered as qualitatively identical when, in fact, they are not. Some exceed standards more than others.

How do I choose the sae viscosity best suited to my vehicle/motorcycle?

In some cases, the viscosity class is not set by the manufacturer or indicated in the owner’s manual. In this case, the user can choose the viscosity best suited to their engine based on the external temperature and their driving style. The SAE viscosity class of a multi-grade oil is defined by two numbers separated by the letter "W" (stands for ‘winter’).
The initial number relates to the viscosity class measurement at low temperature and the second at high temperature or 100° C.
The higher the number, the greater the viscosity of the lubricant for a given class. Lubricants with a low initial number (meaning more viscosity at lower temperatures) are a better choice when vehicles are used mainly in colder climates. On the other hand, lubricants with a high second number (meaning more viscosity at higher temperatures) are a better choice when vehicles are used for sports driving or where temperatures are higher. In latest generation cars, low viscosities are also indicated to improve fuel economy.

When topping up oil, can I mix different lubricants together?

Yes, in emergency situations. Lubricants with similar properties and formulated for the same uses can be mixed together. This is the case even when it comes to mixing mineral and synthetic oil or vice versa. But, you need to consider that final performance after mixing may be different and possibly lower. If you want to avoid this possibility, mixing oils may not be the best solution.

Do diesel automobile engines need different lubricants than petrol engines?

Although diesel and petrol engines have different needs, the latest generation lubricants typically meet many of the requirements of both.

Can I use automobile engine oil in a motorcycle and vice versa?

No. Generally, motorcycles that have an integrated gearbox and oil-immersed clutch need specific lubricants that can lubricate the engine and transmission. This assures the efficient transfer of driving force from the engine to the gearbox without excessive slippage between the clutch discs. Regardless of this, bear in mind that motorcycle engines operate at higher speeds and temperatures than automobiles. For this reason, they require a special kind of oil which can work under and support these more stringent conditions.
On the other hand, motorcycle oil may not be suitable to or meet the specific needs of the latest generation automobiles such as those designed for long journeys, fuel economy, vehicles with low saps, etc.

What are the advantages of synthetic lubricants?

Synthetic lubricants are formulated with base oils that are not directly derived from petroleum refining. Rather, they are made through an industrial chemical process. Synthetic bases give lubricants superior characteristics in terms of higher fluidity at low temperatures, better resistance to oxidation degradation at higher temperatures and less evaporability (lower oil consumption). A synthetic product may sometimes, but not necessarily, be better than a mineral product. Its actual “value” may be judged based on final performance or referring to various technical assessments.

How often do I need to change the oil?

The oil change interval is determined by the manufacturer and is indicated by the vehicles' on-board computer or in the owner’s manual. However, the manufacturer also generally indicates a time interval for replacing lubricants. Driving style, type and intensity of use and external environmental conditions can all affect the length of this interval.

Excessive fuel consumption?

Bardahl TOP DIESEL 250ml allows a total combustion and a better energy efficiency of the fuel. Through its action, it keeps the injection holes free from deposits, allowing optimal pulverization of the diesel fuel. This cleaning of the injection holes allows an improvement in engine efficiency and a consequent reduction in fuel consumption.

INSTRUCTIONS FOR USE - Add a 250ml bottle to a full tank of diesel (about 60lt). - For better mixing with diesel, it is recommended to pour the additive into the tank before refueling. - Repeat the operation every 3/4 full for a continuous treatment.

Clogged particulate filter?

Bardahl DPF Cleaner allows the regeneration of the particulate filter and the maintenance of the correct differential pressure value inside the device. Regular use avoids clogging of the filter even in city contexts and forced regeneration interventions by lowering the regeneration temperature and slowing down its natural degradation. 

INSTRUCTIONS FOR USE - Add a 250ml bottle to a full tank of diesel (about 60lt). - For better mixing with diesel, it is recommended to pour the additive into the tank before refuelling. - Repeat the operation every 3000 km for continuous treatment.

Can I use a lubricant even if it is different from the one recommended?

Absolutely yes, you can use Bardahl motor oil in any case. Make sure that the lubricant complies with the specifications and SAE viscosity classes required by the motorcycle manufacturers (shown in the use and maintenance booklet). Even with lubricants of a different brand than the recommended one, the guarantee remains valid.

Four maintenance tips of the motorcycle in the summer

With the arrival of summer and summer heat, it is essential to take into account the increase in operating temperatures to which the motorcycle is subjected. The heat, in fact, can be a great enemy for the bike. Before traveling during the summer season it is recommended to proceed with a good service in your trusted or "do-it-yourself" workshop.

Here are some tips to prepare your motorcycle to safely face even the hottest temperatures.

1. Check the oil level
This is an operation of primary importance: the engine oil level must be between the two minimum and maximum notches of the window on the engine block and it is always better not to blindly trust the electronic warning lights. If the oil levels are below the minimum, you can proceed with a topping up or, in more extreme cases, even with the complete replacement of the filter, using the type of Bardahl oil that meets the specifications indicated by the manufacturer.

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2. Check the coolant
The coolant protects the entire cooling system not only from overheating but also from corrosion and scale. For this reason, Bardahl has developed two practical and very valid solutions: pre-diluted and ready to use, the Coolant HOA Tech coolants, to be used in the cooling circuits of high-performance engines of motorcycles, scooters and quads, and Coolant OA Tech, for motorcycles that require premium “long life” OAT (Organic Acid Technology) fluids, these are the ideal products to protect radiators, cylinders, cylinder heads and water pumps even in the hottest months.

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3. Check for proper operation of the brakes
Do not forget to check the level of the fluid for the hydraulic circuits of the braking system and the wear of the pads and discs: if the brake fluid level is low, change must be done promptly.

Bardahl products are excellent allies, first of all Brake Fluid Dot 4 brake oil, which can also be used in the event of particularly high temperatures, without the likelihood of the formation of dangerous vapor bubbles within the fluid (Vapor Lock phenomenon ). The product is suitable for the hydraulic circuits of disc brakes, drum brakes and clutches, of motorcycles and cars.

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4. Check the smoothness of the forks of the motorcycle
The chassis also deserves great attention: well-functioning forks allow the bike to have excellent stability and governability on the road, while ensuring maximum comfort for the rider. Bardahl solutions for this type of components range according to needs: the lubricants of the XTF range, for example, have a high viscosity index and enhance the performance of hypersport, sport-tourer and on / off-road forks and shock absorbers. , while XTF FORK Synthetic Oil is a special fluid, designed for racing and able to offer high and uniform performance in all conditions of use and in a wide range of temperatures.

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Having completed all the appropriate checks, including routine maintenance, all that remains is to wear a helmet, start the motorcycle and enjoy driving in total comfort and safety.

Poor quality fuels: what damage they can cause and how to prevent them

The reports made by consumers regarding damage caused by poor quality fuels are increasingly frequent. This is a problem that should not be underestimated as it can cause significant damage and consequences to your vehicle.
The problems can be many and depend on various factors inherent to the fuel such as: the refining process, incorrect cleaning of the residues in the tanks in which it is stored or alterations dictated by the presence of water or other elements.
The engine components that are most susceptible to damage are those that affect the injection system. In most cases the problem can be solved with the correct prevention, while in the worst case the risk is that of having to replace the fuel pump or the injectors.

Bardahl has developed specific fuel additives for the prevention and care of the fuel system which, if used continuously, make it possible to drastically reduce the risks associated with the degradation of the systems.

For shock therapy and diesel car cleaning: Diesel Injector Cleaner

For maintenance and cleaning of diesel cars: Top Diesel

For shock therapy and petrol car cleaning: Fuel Injector Cleaner

For maintenance and cleaning of petrol cars: Top Petrol


Clogged particulate filter?

Bardahl DPF Cleaner allows the regenerationof the particulate filter and the maintenance of the correct differential pressure value inside the device. Regular use avoids clogging of the filter even in city contexts and forced regeneration interventions by lowering the regeneration temperature and slowing down its natural degradation.

- Add a 250ml bottle to a full tank of diesel (about 60lt)
- With diesel, for better mixing, it is advisable to pour the additive into the tank before refueling
- Repeat the operation every 3000 km for continuous treatment.