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I've always run our Mk 2 RS on super unleaded; but was curious if anyone knew whether the 2.3 ecoboost engine will require super unleaded, or will be happy to run on standard unleaded.
 

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I've always run our Mk 2 RS on super unleaded; but was curious if anyone knew whether the 2.3 ecoboost engine will require super unleaded, or will be happy to run on standard unleaded.
I imagine that an engine this advanced will have a knock sensor (as does the mk2) meaning it will run happily on either 95 or 97+.

The mk1 FRS did not have this sensor and had to run on 97+ and was a pain in the ****, especially when in the continent in my experience..
 

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What Super unleaded did the Mk2 prefer ? I know mappers for Scoobies always recommend Shell VPower instead of BP or Tesco.
 

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What Super unleaded did the Mk2 prefer ? I know mappers for Scoobies always recommend Shell VPower instead of BP or Tesco.
Well over the years I tried just about every premium fuel on the market and for real sparkle performance wise I was suprised that Tesco Momentum was noticeably better. Engine runs smoother and quieter on V-Power though so I tend to fill twice with Tesco then once with V-Power.
 

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It will be the cheapest super unleaded I can find for me, supermarket stuff powered my Mk2 along just fine.
 

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I've no issue with Shell Nitro but generally have run the last few performance cars off Momentum - the only thing we try and do is use Shell's Diesel for the 330d rather than the Tesco stuff which isn't enhanced in the way Momentum is (blended ethanol by Greenergy etc)
 

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Most fuel is good enough for everyday normal driving. It's when your caning foot mashed to the floor is when the trouble starts. It runs lean and melts a piston.
 

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Most fuel is good enough for everyday normal driving. It's when your caning foot mashed to the floor is when the trouble starts. It runs lean and melts a piston.
That's a strange statement - the ECU is quite a clever thing.
 

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That's a strange statement - the ECU is quite a clever thing.
Tell that to all the ECUs of the Jap import's of the Subaru and Evos that melted piston's (where I'm from anyhow) due to the lower Octane fuel used. Anyone who drove sensibly never had an issue just the ones who held teir foot to the floor for a period of time.
 

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Tell that to all the ECUs of the Jap import's of the Subaru and Evos that melted piston's (where I'm from anyhow) due to the lower Octane fuel used. Anyone who drove sensibly never had an issue just the ones who held teir foot to the floor for a period of time.
Thats cause they were all using a cherry mixture smuggled across the border :smile:
 
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