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E-Rivas E-Rivas is offline
New Member
Posts: 13
Join Date: Mar 2018
Car: F80 ZCP
Default 03-19-2018, 08:13 PM

Originally Posted by Chromey
Can any one shed light on Royal Purples octane booster. I hear that it is the best..
2017 M3 ZCP, JB4, BMS intake, and charge *****.

I’m using royal purple on this tank, 93 octane, and I can feel the difference, running map 2. I feel a stronger pull using Royal Purple than running 2 gallons of e85 on a full tank of 93 octane. I also ordered Torco and Race Gas concentrate, I’m going to run one bottle each on 93 and see how they compare with feel. I’d like run on a dyno to compare as a controlled expirement, but so far Royal Purple has a noticeable difference on map 2.
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