C-Class (W203) 2001-2007, C160, C180, C200, C220, C230, C240, C270, C280, C300, C320, C230K, C350, Coupe

Stage 3 settings results

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Old Aug 22, 2002 | 11:28 AM
  #26  
mdp c230k's Avatar
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Originally posted by renncpe


We have all checked this out. The computer setting states " RON values at least 93 octane" do you think that they lost something in the translation? One way you could look at is that they mean a ron of 97 min.
Remember, we don't use just RON numbers . We use Motor octane + Research Octane Number(RON) divided by two to get our ratings. RON is much higher than Motor octane for the same gas. If you set for 93RON it is comparable to our 87 octane gas. That would account for the loss in power the Buellwinkle had when he set it for 93 octane. Why on earth he changed the setting God only knows! I think that Buellwinkle might have lost something in the translation.
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Old Aug 22, 2002 | 01:04 PM
  #27  
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w203 c230K 2002
Originally posted by mdp c230k


Remember, we don't use just RON numbers . We use Motor octane + Research Octane Number(RON) divided by two to get our ratings. RON is much higher than Motor octane for the same gas. If you set for 93RON it is comparable to our 87 octane gas. That would account for the loss in power the Buellwinkle had when he set it for 93 octane. Why on earth he changed the setting God only knows! I think that Buellwinkle might have lost something in the translation.
Ive made the same mistake then because I was reading it to min of 93 motor octane. I will try and get some more information from Mercedes.
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Old Aug 22, 2002 | 05:02 PM
  #28  
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My info comes from a MB tech with over 20 years as a factory trained tech. I have the utmost in confidence in him knowing what is really going on with the settings. He said to leave the timing alone and use stage 2 fuel unless you are really hard on the car then stage 3 is best. He also said the stock plugs are fine as is.
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Old Aug 22, 2002 | 06:34 PM
  #29  
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Originally posted by mdp c230k

That would account for the loss in power the Buellwinkle had when he set it for 93 octane. Why on earth he changed the setting God only knows! I think that Buellwinkle might have lost something in the translation.
Renncpe and Kleemann both claimed to be using the Octane settings, that's why I used that. They either didn't test what they preach or didn't want to release numbers that weren't as good as they had before.
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Old Aug 22, 2002 | 07:57 PM
  #30  
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Originally posted by mdp c230k
My info comes from a MB tech with over 20 years as a factory trained tech. I have the utmost in confidence in him knowing what is really going on with the settings. He said to leave the timing alone and use stage 2 fuel unless you are really hard on the car then stage 3 is best. He also said the stock plugs are fine as is.
so even if i only put 93 octance in my car i should leave my fuel setting to base?

and also which stage will give me better performance and more gains? stage II or stage III ?

i floor my car alot and at least a cupple times a day usually so which setting is better?
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