Hi all, Does anyone out there know if the SVR engine has a fuel octane sensor. If it doesn't it kind of makes no sense in me putting Super Unleaded in it anymore. Hopefully someone out there can shed some light on this matter.......

Cheers. 👍🏻 2010 RR 5.0 Autobiography
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https://www.rrsport.co.uk/forum/topic49854.html

Many thanks for that it made interesting reading but didn’t really mention if the engine has or not a fuel sensor to actually recognise what octane fuel is going into the fuel system. 2010 RR 5.0 Autobiography
2020 F-Pace SV
2018 RRS HSE Dynamic 3.0
2015 Disco XXV
2011 Disco 3.0
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Doesn't the Knock sensor look after that?
Regards
Barry 2017 Range Rover Sport TDV6 L494 SE Fuji White
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AS far as I understand, the knock sensor only adjusts the timing if if detects any knocking, ie if a lower octane fuel is used than recommended. An octane sensor will detect between the lowest recommended octane fuel and make adjustments if a higher than recommended octane fuel is used. Its not making timing adjustments through the sensing of any knocking but thought the detection of the higher octane fuel. 2010 RR 5.0 Autobiography
2020 F-Pace SV
2018 RRS HSE Dynamic 3.0
2015 Disco XXV
2011 Disco 3.0
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Hi PDC,
Below is the definition of how an octane rating is determined:

"The octane number of gasoline is a measure of its resistance to knock. The octane number is determined by comparing the characteristics of a gasoline to isooctane (2,2,4-trimethylpentane) and heptane. Isooctane is assigned an octane number of 100. ... Anti-knock agents may be added to further increase the octane rating."

A special "standard test engine" is required to do the testing. I have never heard of an on board device to determine the octane rating of a fresh tank of fuel.
But of course I could be wrong.
Regards Barry 2017 Range Rover Sport TDV6 L494 SE Fuji White
2011 Range Rover Sport SDV6 L320 SE Fuji White Loved but GONE
2010 TRAKKA Motorhome Fiat Ducato GONE (What a dud, don't buy one)
2006 Discovery 3 SE TDV6 Automatic Chawton White/Ebony. Loved but GONE
2006 BMW X5 diesel White/Charcoal, Bought new, Gone after 12 years! Was Excellent.
Ex Member Range Rover Club NSW

Hi Barry, very interesting reading and many thanks for your reply........ 👍🏻 😃 2010 RR 5.0 Autobiography
2020 F-Pace SV
2018 RRS HSE Dynamic 3.0
2015 Disco XXV
2011 Disco 3.0
2008 RRS HST V8