Synthetic oil is comprised of only medium-length molecules ... Supervisor of Fuels and Lubricants at Ford said they’ve switched to lighter weight 5W-20 oils in order to trim fuel consumption.

Mobil 1 topped our rankings of synthetic motor oils, and you can get it in 0W-20, 0W-40, and 5W-20 viscosities from Amazon for about $30 for a five-quart bottle. If you're not sure which engine is ...

Lubrication Engineers has harnessed the latest technology and knowledge to formulate a high-quality, high-performance, proprietary synthetic engine oil for gasoline engines. Monolec® Tetra-Syn Engine ...