Which octane rating for C6 RS6
Discussion
If it doesn't state a value above 95 then on the standard map it won't make much difference. If it was mapped for 98 it'd state that on the fuel flap and you'd lose performance using 95 instead
If it was remapped you could gain a bit by using 98 and potentially reduce the risk of detonation.
Running 98 won't do it any harm
I run 98 in my S8 as it states that's what it needs (98/95). The more modern S5 states 95/91 so it gets 95
If it was remapped you could gain a bit by using 98 and potentially reduce the risk of detonation.
Running 98 won't do it any harm
I run 98 in my S8 as it states that's what it needs (98/95). The more modern S5 states 95/91 so it gets 95
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