Wise Bread offers up a couple of ways to save money on petrol - and the big one is just slow down your driving speed.
On highways, the "sweet spot" for fuel efficiency is 55 miles per hour, or 90 km/hour. In fact, due to wind resistance at speed, you may use up to 20% more fuel if you speed up from 90km/hour to 120 km/h, according to figures the article quotes from Eartheasy.com.
Even on city streets, there are some ways to increase fuel efficiency - learn to take your foot off the accelerator when you can see you'll need to slow down or stop. Accelerating burns fuel - so it's wasteful to accelerate up to a red light, then hit the brakes.
Looking for other ways to save on petrol? We previously told you how to shop around online to find the cheapest petrol. Got any other tips for saving on petrol? Share in comments please.
How to save $0.54 per gallon on gas [Wise Bread]