It is difficult to build a budget around fuel costs. Prices constantly fluctuate and driving conditions are unpredictable.

What you pay also depends on where you live. Norwegians have it particularly tough as they pay some the highest fuel prices in the world at kr59.72 per gallon ($10.08). No matter where you buy your fuel, however, there are some surprising tips and tricks you can use to keep your hard earned money from flowing into your tank.

Buying fuel on specific days of the week can help you save. Even filling up at a certain time of day can keep more money in your wallet. Click the play button for these and other shortcut routes to saving — in 90 seconds.

Have we missed any tips and tricks? Join the conversation on BBC Capital's Facebook page.