Regular Unleaded
Mid-Grade Unleaded
Premium Unleaded
E85
Happy Monday everyone! Hope that you all had a very blessed Easter!
Okay, so I got my first response from the engineer's. It looks like the advertised ratings are using RON95 fuel (91 US octane). So, anything higher would theoretically INCREASE ratings.
More when I get it!
I believe that using higher octame does not increase ratings if the used RON 95 for set up etc. In this case the ECU is set up for RON 95 and anything better will not help.
However, using regular should certainly decrease ratings.
Anyway, I personally would not pay for premium if regular works for everyday driving just fine.
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