The NFC circuitry itself is in the phone, but the antenna is in the battery. This is due to the layout of the phone. Since the range of NFC is very small, the antenna is placed on the outer side of the battery to increase the range as much as possible.he NFC circuitry itself is in the phone, but the antenna is in the battery. This is due to the layout of the phone. Since the range of NFC is very small, the antenna is placed on the outer side of the battery to increase the range as much as possible.
4 â Choosing the Right Oil. Choose your motor oil based on the time of year and the climate you live in. Motor oils are designed to perform to their best throughout the seasons. In summer, choose a recommended motor oil for your particular vehicle. Have a look in the manual for your car and read the recommended viscosity suggestions for the time of year you change your oil.
Different formulas of motor oil are used for different applications and have different densities. For example, SAE 15W-40 motor oil at 32 degrees Fahrenheit weighs 7.4 pounds per gallon, while SAE 0W-30 motor oil at 212 degrees Fahrenheit weighs 6.7 pounds per gallon. The numbers that denote the type of oil refer to the SAE testing standards that motor oils undergo.