A Core deposit is a form of deposit you pay until returning your old part. If you don't have the core at the time of purchase, you must pay the core charge. That charge is refunded to you when you return the core.
Motorcraft® SAE 5W-30 Full Synthetic Motor Oil is a premium-quality passenger car motor oil designed, engineered and recommended by Ford Motor Company meeting warranty requirements. It is API Certified for gasoline engine service ILSAC GF-4 and meets API SM/Energy Conserving Motorcraft® SAE 5W-30 Full Synthetic Motor Oil is manufactured with high-viscosity index, premium-quality, synthetic base oils that provide good high temperature and low temperature performance. It helps minimize engine deposits and wear, protect against high-temperature oxidation, low-temperature gelling, rust and corrosion and foaming. The friction-reducing technology in this motor oil provides superior wear protection and energy-conserving characteristics, which result in significant improvement in fuel economy when compared to SAE 10W-30 motor oils