Amazon offers Valvoline's conventional motor oil in single units of 1- or 5-quart bottles, a 6 pack of 1-quart bottles, or a 3 pack of 5-quart bottles. Valvoline uses added detergents to help ...

the price difference between a five quart bottle of Superior Protection Full Synthetic 5w30 oil from Super Tech and a comparable product from Mobil 1 is almost $10. Walmart's best selling motor ...

Changing the oil yourself ... 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.

"In a pinch, most any motor oil will ... top it up between oil changes." (Learn how to check your car’s engine oil.) How to ...