When to Buy: Monday.
Why: "Car dealers live for the weekend, which is when they make most of their sales," says Phil Reed, consumer advice editor for Edmunds.com. "On Mondays, the low foot traffic makes it seem like the weekend will never come." That dealer desperation, paired with fewer consumers on the lot, give you more negotiating power.
When to Buy: Thursday, before 10 a.m.
Why: The price of oil isn't the only factor influencing costs at your local pump. Consumer usage plays a role, too â€” and weekend demand is high, says Jason Toews, co-founder of GasBuddy.com, a price-monitoring site. Prices usually swing upward on Thursdays as travelers fuel up to head out the following day. By hitting the pump before 10 a.m. (when many station owners change their prices), you'll beat the rush and the price jump.
Link - via the Consumerist (Image Credit: Dania_H)