In the cost-of-living crisis, over half of Australian drivers drive a car that is 10 years old or older - Lemons. These cars can be sluggish, shudder or janky, making for a worrisome ride.

However, using a higher-octance fuel like Mobil’s, can lead to better performance, helping these older engines run smoother, respond faster and prevent the dreaded sound of engine combustion.

To prove this, we’ll put a bunch of these old sh*t box cars to the ultimate pressure test - a Lemon Lap.

Driven by the 7-Eleven Redbull F1 team, a lineup of Lemons will be fuelled by Mobil Fuel and raced around a lemon-shaped track, to win the Big Squeeze championship.