The best synthetic oils offer more mileage, keep the engine cleaner ... Whatever oil viscosity your car runs, stick with it. If your owner’s manual says 5W30, or 15W40, or 10W60 as an oil ...

Planning on changing the motor oil of a Ford 3.5L EcoBoost yourself? Here's the type of oil you need - and how much you'll ...

With so many available motor oil brands and several labels like "synthetic blend," "full synthetic ... The most common examples are SAE 5W-30 or SAE 10W-30. However, your car might need something ...

These letters are based on a group of laboratory and engine tests that determine the oil’s ability to protect the engine from wear and high-temperature deposits and sludge. API has a full list ...

if a broader motor oil brand ranking is something you might be interested in, we've got one of those lists as well. One last note — we've linked five-quart jugs of 5W-30 Full Synthetic oil ...

While we can't guarantee that Mobil 1 Advanced Fuel Economy motor oil will save you money on gas, folks who use it regularly swear by it. Right now Mobil 1 Advanced Fuel Economy Full Synthetic ...