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BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Technical Forums > Tracking, Autocrossing, Dragstrip, Driving Techniques > Race - Premium Gas Octane Mix



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      01-10-2009, 12:56 PM   #1
Septro
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Race - Premium Gas Octane Mix

Not sure if this is a repost or not, but I saw this on the lotus forums and thought it may be a good reference when trying to figure out what octane you have when mixing Race gas with premium unleaded:

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      01-10-2009, 01:06 PM   #2
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nice good find is there one with 93 octane?
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      01-11-2009, 01:38 PM   #3
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Here's a good link to an Octane Calculator...
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      01-11-2009, 01:58 PM   #4
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Quote:
Originally Posted by Tuned335i View Post
Here's a good link to an Octane Calculator...
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      01-12-2009, 01:55 AM   #5
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Can the 335 stock ECU add timing or boost to take advantage of higher octane?
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      01-12-2009, 07:28 AM   #6
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Quote:
Originally Posted by Nick Nazareno View Post
Can the 335 stock ECU add timing or boost to take advantage of higher octane?
sadly don't think so
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      01-21-2009, 04:56 PM   #7
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Are the 335 stock prone to detonation on 91 octane??
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      01-21-2009, 05:29 PM   #8
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Quote:
Originally Posted by Donald-335i View Post
sadly don't think so
I guess it is still good insurance against detonation to add some 100 octane before a long day of track use
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      04-21-2009, 12:04 PM   #9
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i love you... i just started mixing a little 100 in my 91 the past few weeks. And this will remove alot of the guess work.
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