Product FAQs

First, the performance of Mobil 1™ line of motor oils is more robust, especially in terms of low temperature pumping and flow. High‐temperature stability leading to protection against deposits is also superior. These attributes translate into less engine wear, which helps keep your engine running like new, and obtain long engine life. Synthetic blend oils lack the high level of performance of synthetic motor oils in the areas of low‐temperature performance and high‐temperature oxidation stability. The base stocks used in Mobil Super™, one of our synthetic blend motor oils, are of a high quality, but those used in Mobil 1 fully synthetic oils are better.

Yes. Mobil 1 is fully compatible with conventional motor oils, semi‐synthetic motor oils and other synthetic motor oils, should it be necessary to mix them. But the superior performance of Mobil 1 will be reduced by diluting it.

With the exception of the Mazda rotary engine (Mazda does not recommend any synthetic oils), Mobil 1 will not void new‐car warranties where an American Petroleum Institute (API) certified oil is recommended. Mobil 1 meets or exceeds API and International Lubricant Standardization and Approval Committee (ILSAC) motor oil service requirements of all new‐car manufacturers, both import and domestic. If in doubt, always check your vehicle owner's manual or contact the vehicle manufacturer.

Many kinds of driving conditions qualify your vehicle for severe service oil change intervals, and Mobil 1 is ideal for this service. Severe service conditions can include, among other things:

• Trips of less than 10 miles
• Driving in cold weather
• Idling for extended periods
• Stop‐and‐go traffic
• Pulling trailers/carrying heavy loads
• Driving in dusty conditions

Under both normal and severe service conditions, Mobil 1 is engineered to provide performance reserves in the areas of sludge prevention, piston cleanliness, wear protection and high‐temperature durability.

Oil change intervals can be as short as 3,000 miles or as long as 20,000 miles on some new cars. We recommend that you follow the oil and filter change frequencies shown in your owner's manual, especially during the warranty period. With the high‐performance reserves of Mobil 1, you can have the confidence to go the full mileage or time frame recommended by the vehicle manufacturer. Mobil 1 is especially suitable for the latest vehicles with extended drain intervals or vehicles with oil monitoring systems that vary oil drain intervals. To fulfill the requirements of the Mobil 1 limited warranty, Mobil 1 motor oil must be changed at least every 10,000 miles or your vehicle’s OEM recommended oil change interval, whichever is longer.

ExxonMobil does not recommend it. According to the American Petroleum Institute (API) and Alliance of Automobile Manufacturers (AAM), "certified oils eliminate the need for supplemental engine oil additives." In fact, the use of any oil supplement is not recommended by car manufacturers and may void a warranty.

Yes, if the small engines are four‐cycle engines that call for detergent‐type motor oil. This type of engine has a separate crankcase for motor oil – it's not mixed with gasoline.

You should follow the same environmentally sound procedures that you do with conventional motor oil. The U.S. Environmental Protection Agency's (EPA) guidelines for disposal include:

• Do not dump used motor oil in the trash.
• Do not pour it on the ground or down the sewer or storm drain.
• Place the used motor oil in a closed container.
• Take it to a service station or a collection location that recycles used motor oil.
• Do not burn the used motor oil in a space heater.
• Do not mix motor oil with other substances, such as gasoline or antifreeze.

Many Exxon and Mobil service stations will take used motor oil from do‐it‐yourselfers and will follow EPA‐approved recycling practices. Please note that it is acceptable to mix used Mobil 1 with used conventional oil. In short, Mobil 1 should be disposed of in the same manner as used conventional motor oil.

Visit Earth 911 to find a used oil disposal location near you. Click here for more information.