Mobil 1 FAQ’s Basic Knowledge Can Mobil 1 be used in diesel engines? • Mobil 1 is formulated primarily for optimal performance in petrol/gasoline engines. • Mobil 1 is only suitable in older diesel engines requiring up to API CF rating. • Mobil 1 is not suitable for newer diesel engines requiring higher API engine oil ratings. Mobil Delvac series products are the ideal choice.

Can Mobil 1 be used in brand new vehicles and engines? • Yes, modern vehicles can use Mobil 1 straight out of the factory. The benefits of Mobil 1 can be enjoyed immediately. • Mobil 1 various is the factory fill for more than 40 models of vehicles from renowned brands.

My old vehicle only requires API SG engine oils, can I use Mobil 1 0W-40 (API SN)?

Are 0W-xx oils, like Mobil 1 0W-40, thick enough for use in hot weather?

• Yes. All API ratings are backward compatible. The latest API SN rating have much higher performance requirements compare to older ratings.

• Yes. Mobil 1 0W-40 is suitable for all climate conditions. It has demonstrated excellent engine protection in the same vehicle running in freezing arctic and extremely hot desert conditions.

• Mobil 1 0W-40 exceeds API SN requirements, and many other industry and OEM requirements. It will provide better protection than any conventional oil.

Is there any harm from mixing different of grades Mobil 1? • No, all grades of Mobil 1 are compatible with each other. • However, there are no additional benefits from doing so.

• The viscosity behavior of the oil under high temperature and high shear (HTHS) conditions is defined by the second number “40”. • Mobil 1 0W-40 flows faster during cold starts and will provide protection to every part of the engine sooner. Over the long term, the engine will benefit from having less cold start related wear.

Mobil 1 FAQ’s My vehicle OEM recommends 0W-20 / 5W-20 / 0W-30 / 5W-30 engine oils. Can I use Mobil 0W-40? • Always follow OEM recommendations. Select the Mobil 1 viscosity grade accordingly. • It is very unlikely for the engine to encounter any issues with using Mobil 1 0W-40. However, the engine may not deliver its maximum fuel economy potential.

Converting to Mobil 1 Is an engine flush required before switching to Mobil 1? • Not necessary. Mobil 1 is compatible with conventional oil. • When using Mobil 1 for the first time in old vehicles, change the oil and filter after the initial 5000 km. This will allow Mobil 1 to clean out some of the accumulated deposits. After that, resume normal oil change interval, according to OEM’s recommendation. • (Older and dirtier engines may require 2-3 shortened oil and filter change intervals, before resuming normal intervals.)

Is it okay to switch to Mobil 1 in an old vehicle after using mineral oil or other brand for many years? • Yes. • When using Mobil 1 for the first time in old vehicles, change the oil and filter after the initial 5000 km. This will allow Mobil 1 to clean out some of the accumulated deposits. After that, resume normal oil change interval, according to OEM’s recommendation.

• (Older and dirtier engines may require 2-3 shortened oil and filter change intervals, before resuming normal intervals.)

Mobil 1 FAQ’s Mobil 1 is a top-end premium engine oil. Are there any benefits for using it in low end vehicles? • •

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All engines require the same protection, regardless of make or age. Mobil 1 offers superior protection to any engines, under all usage and climate conditions. Mobil 1 is proven to minimize wear, minimize deposits, keep engines clean, preserve reliability and enable maximum engine life. This helps to enhance long term ownership experience and operating costs.

How far can oil drain intervals be extended with Mobil 1? • It is best to follow the OEM’s recommendations.

• Oil drain intervals depends on the engine condition, environmental conditions, fuel quality, usage patterns, etc.

What is the advantage of Mobil 1 0W-40 over other 5W-40 synthetic oils? • Both 0W-40 and 5W-40 will provide the same level of protection at high temperatures. • Mobil 1 0W-40 will flow slightly faster during a cold start and will provide protection to every part of the engine sooner. Over the long term, the engine will benefit from having less cold start related wear.

Performance Issues Will Mobil 1 provide adequate engine protection instop- nd-go driving conditions? • Yes. Mobil 1 offers unsurpassed engine protection under all driving and climate conditions. • However, excessive idling and repeated short trips may prevent the engine from reaching its optimal operating temperature, causing water to accumulate in the engine oil. • Taking a 20 minute drive along the highway/expressway may help to remove this excess moisture.

Mobil 1 FAQ’s Why did the colour of Mobil 1 turn dark and black? • All engines produces some amount of soot, ash and combustion by-products. If left uncontrolled, they will form deposits that could affect the performance and reliability of the engine. • Mobil 1 is has a unique additive package to clean up dirty engines and keep it clean. Mobil 1 keeps the dirt suspended in the oil, which and gives it a dark appearance. • This is a confirmation that Mobil 1 is doing it intended job very well. If the dirt is not in the oil, it is on the engine surfaces!

Will mixing Mobil 1 with other engine oils cause sludge or gel to form? • No. Generally, engine oils are compatible with one another. • However, Mobil 1 is a complex mixture of different base oils and additives. Every component have to be balanced to achieve the overall outstanding performance of Mobil 1. Mixing with other oils might destabilize this delicate balance and affect the performance negatively.

Can Mobil 1 eliminate engine sludge problem? • Mobil 1 provides outstanding protection and control of sludge formation.

• Engine sludge can be caused by many reasons, unrelated to engine oil quality or performance. • Mobil 1 can clean up sludge deposits, but require shorter oil drain and filter change intervals. Factors contributing to sludge formation must be identified and addressed first. Can Mobil 1 turn dark and milky after using for 1000-2000 km? • Engine oil turning dark and milky is usually caused by an engine issue, not oil performance. (It can happen to any engine oil.) • It may be cause by usage pattern, such as making multiple short trips without fully warming up the engine, causing water to accumulate in the engine oil.

Mobil 1 FAQ’s Mobil 1 0W-40 has a wide viscosity range. Will it cause coking (hard carbon deposits) in turbocharged engines?

Is Mobil 1 too slippery for some engines? Will it ‘over-lubricate’ the engines?

Is there any issue with residual oil in the engine when switching to Mobil 1?

• There is no such thing!

• No. Mobil 1 is compatible with conventional oil. No special procedure is necessary.

• No. Mobil 1 0W-40 is formulated with high viscosity index synthetic base oils, which do not require excessive amounts of viscosity modifier additives.

• Mobil 1 provides superior and proven protection to any engine.

• Conventional base oils require high amounts of viscosity modifier additives, which may contribute to deposits.

Can leftover new engine oil from previous oil change be combined and used with new oil for the next oil change?

• Mobil 1 has outstanding protection against deposits and resistance to thermal degradation. It is chosen and endorsed by many OEMs for their turbocharged high performance vehicles.

• Yes. It’s a good practice from an oil conservation point of view. • However, the unused oil must be stored properly in its original container and in a good environment to prevent contamination and deterioration.

• To realize the maximum performance potential of Mobil 1, ensure that the residual oil is removed as much as possible. The oil filter must also be changed.

Mobil 1 FAQ’s Any issues with Mobil 1 causing coking (hard carbon deposits) in the turbochargers of racing engines? • Mobil 1 has outstanding protection against deposits and resistance to thermal degradation. It is chosen and endorsed by many OEMs for their turbocharged high performance vehicles. • The vehicle operator must also take steps to protect the engines. - Allow the engine to idle for a while to cool down before turning off. - Do not over extend oil change intervals.

Does a higher flash point means better engine oil performance? • No. It is not a meaningful measure of oil performance. • Flash point is more important for evaluating transportation and storage safety.