Premium Unleaded

Fuel that cleans your engine for a better drive

Protect. Perform. Prolong.

JET ULTRA Premium Unleaded has a higher-octane formula than our regular fuel.

In engines that can take advantage of it, higher-octane fuels deliver more power than lower octane fuels.

Improved acceleration, a smoother drive and more oomph at lower revs - all potential perks of removing built up combustion deposits from vital engine parts.


The Benefits

Engines have never had it so good

No ordinary fuel

JET ULTRA doesn’t just keep you going, it helps clean your engine making it more effective than regular JET Fuels and protecting it against harmful build-up.



JET ULTRA Premium Fuels contains more of our powerful anti-corrosion additive to help protect vital parts, it’s even more defence for your engine.



Dirt in your engine can stick to the injectors, valves or cylinder, impacting acceleration, emissions and fuel efficiency. The super strong detergents in JET ULTRA attack these deposits and coat the clean, key components in a special film to help prevent future build up.



By deep-cleaning, protecting and increasing the performance of your engine, JET ULTRA could lead to longer engine life.


Drivers FAQs

We’ll do our best to help you find the answer

Most Popular
If I have a query about a specific JET petrol service station how do I get in touch?

If the question is about the day to day operation of the site, including services offered, opening hours and car parking, we recommend that you get in touch with the site directly. The day to day running of the site is handled at each individual petrol station site by the dealer or SSO.

Do your fuels contain Ethanol?

Drivers looking to fill up at one of our 300+ JET branded petrol station forecourts throughout the UK currently have two fuel options: they can choose our regular JET petrol which contains up to 10%ethanol (E10) as per latest BS EN228 or, where it is available, they can choose our new JET ULTRA Premium Unleaded, with its minimum 97 RON, containing up to5% ethanol (E5).

Will JET ULTRA Premium Fuel work in my engine?

JET ULTRA Premium Unleaded meets the BS EN 228 British Standard, and JET ULTRA Premium Diesel meets the BS EN 590 standard. These are British Standards for fuel on which vehicles are designed to run. The effects of cleaning depend on factors such as what fuel you used previously, age, type and state of your vehicle, the road conditions, your style of driving and journey time.

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*Information provided on our JET ULTRA Premium Fuels site is a result of research and testing by the detergent manufacturer (including laboratory, engine research on such detergent) and further supported by scientific literature research. 

*Actual benefits may vary due to many factors including, but not limited to, previous fuel used, the age, type and condition of your vehicle, road conditions, your style of driving and journey time. Performance improvement may be more noticeable in high performance car.