91 Unleaded

Just like all our fuels, Z 91 Unleaded is a quality product developed with our international partnerships. Shell Ultra 91 is the same quality 91 octane fuel that we have always had.

The beauty of our 91 Unleaded fuels is that they help keep your engine clean and help protect your fuel systems against corrosion. And the good news is that a clean engine can help improve vehicle driveability and reduce emissions.

The secret is a performance additive that stops the excessive build-up of harmful deposits on your injectors and carburettors. The benefit of a clean engine intake system is that it can improve the air-fuel mixture and that is great news for better combustion.

If your vehicle uses petrol with an octane rating of 91, fill up with either Z 91 or Shell Ultra 91 Unleaded any time.

At Shell branded sites

Look for Shell Ultra 91.

At Z Energy branded sites

Look for Z 91 Unleaded.