Motor Oil &
Other Product FAQ
Whether you have questions pertaining to motor oil performance, synthetic oils or how to recycle your used oil, you can get the answers you’re looking for below. First, narrow the options down by choosing the closest-related category to your question.
Is it ok to switch motor oil weights, for example, from a 5W-20 to a 10W-30?
Is it ok to use 5W-30 in a car if the owner’s manual calls for 5W-20?
What does the “w” in a grade of motor oil stand for?
Is thicker oil better?
When does it make sense to use straight weight oil (SAE30) versus a multigrade oil (5W-30)?
Is switching types of motor oil (conventional, synthetic, etc.) harmful to my vehicle’s engine?
Is it true that older cars must only use conventional oil?
Do I have to wait until my car reaches 75,000 miles before I can use MaxLife?
Has MaxLife always been a synthetic blend motor oil?
How do Valvoline full synthetic motor oils compare to Mobil 1 and Amsoil?
Valvoline full synthetic motor oils are high performing, high-quality oils formulated with full synthetic base oils and top tier additives to provide an increased level of performance. All of Valvoline’s full synthetic motor oils are API licensed to ensure quality for North American vehicle application. We have specially designed Valvoline SynPower 5w40 for application in high performance European or diesel passenger cars and this oil carries the specific OEM approvals such as Mercedes Benz, Volkswagen, Porsche and BMW. Our North American SynPower 5w20, 5w30 and 10w30 exceed ILSAC GF-5 requirements and carry the API starburst on the front label. Valvoline full synthetic motor oils are designed with extra levels of detergent and antioxidant to provide outstanding deposit and heat protection.