Subject to schedule of work and parts used

Expert Servicing That Won’t Void Your Manufacturer Warranty*


This is an update for all of our customers regarding the new standard fuel specification in the UK. 

All Regal Autosport customers are currently recommended to use Shell V-Power 99 RON E5 fuel as a first choice, but may at times use ‘standard’ 95 RON fuel with sympathetic use when it is not easily available.

This statement holds true for 95 RON E5 fuel only. Not the new E10 variant. 

Regal Autosport’s software calibration is optimised for Shell V-Power 99 RON, but can safely be used with 95 RON E5 fuel for transportation only. Not for high performance use.

This is not the case with the new E10 fuels.

The new ‘standard’ fuel specification has changed from an ethanol content of 5% (E5) to 10% (E10). Whilst the RON remains the same, a fuel composition change means a calibration change is required to safely use it.

In short; using E10 fuels in a car calibrated for E5 may pose a risk to the engine.

If you wish to be able to use E10 fuels in your car and would like to have a Regal Autosport software calibration to suit, this is possible upon request. 

Please note that calibrations optimised for E10 use may have a lower power output than those optimised for Shell V-Power 99 RON E5.

Get In Touch

Contact Us

Regal Autosport Ltd. is committed to protecting and respecting your privacy, and we’ll only use your personal information to administer your account and to provide the products and services you requested from us. From time to time, we would like to contact you about our products and services, as well as other content that may be of interest to you. If you consent to us contacting you for this purpose, please tick below to say how you would like us to contact you:

You can unsubscribe from these communications at any time. For more information on how to unsubscribe, our privacy practices, and how we are committed to protecting and respecting your privacy, please review our Privacy Policy.

By clicking submit below, you consent to allow Regal Autosport Ltd. to store and process the personal information submitted above to provide you the content requested.