You can claim the Head of Household filing status on your tax return if you pass the support test, the residency test for a qualifying person, and are unmarried at the end of the year. There are also special rules that relate to separated parents and married couples who live apart from each other.
Motor oil. Motorcraft also sells motor oil for automotive use. As of the late 2000s most of their oil is a synthetic blend or fully synthetic. Several weights are available from the 5W-20 all the way to a 15W-40 for diesel engines.
Mobil 1, the successor to the Mobiloil brand, is a brand name of ExxonMobil. It was introduced in 1974 as a Multi-grade 5W20 viscosity synthetic motor oil. The brand now includes multi-grade motor oils, oil filters, synthetic grease, transmission fluids, and gear lubricants.