Star SDS programming for minumum octane
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Senior Member
Joined: Sep 2003
Posts: 490
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From: OC/SD, CA
EG8 | E46 | W211
Star SDS programming for minumum octane
I 'm planning to change the ignition correction to retard timing to min 93 octane (RON). This is okay for 91 octane (AKI) because 91 AKI = 95 RON, correct? I'm located in CA where premium tier petrol = 91 AKI. Just want some confirmation?
Also, does this change even benefit (or improve) performance?
This is under: Control Units > Drive ME-SFI 2.8 > Control Unit Adaptations > Correction Programming > Ignition > Correction Value of RON
Thanks guys!
Also, does this change even benefit (or improve) performance?
This is under: Control Units > Drive ME-SFI 2.8 > Control Unit Adaptations > Correction Programming > Ignition > Correction Value of RON
Thanks guys!
Senior Member
Joined: Jul 2006
Posts: 469
Likes: 11
From: Santa Clara, CA
2016 CLS63S AMG, 2017 GMC Sierra Denali Ultimate, 2019 KTM 1290 Super Adventure R
I'm also in California and run 91 and Eurocharged 91 tune. Did you ever change this setting to 93 in DAS and did it make any difference? Mine is set to the base value for RON. I assume the Eurocharged ignition map overrides this factory setting anyway?
Former Vendor of MBWorld
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From: Houston
2003 W211 E55, 2003 W220 S600
Set it to base value and the ecu will learn the octane reading of the fuel in the car with the help of the knock sensors. Safest option
Last edited by shardul; Oct 20, 2014 at 07:25 AM.
