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

76 Racing Fuel Locations for CA/AZ/AR/AL (and one station in CO)

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Old 04-15-2007, 09:53 PM
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2007 C350 SS
76 Racing Fuel Locations for CA/AZ/AR/AL (and one station in CO)

I received this list from ConocoPhillips a few weeks ago and have shared this with a couple members here and I thought that I should also share this to anyone who is interested in this forum.

BTW its best to call before hand
Old 04-15-2007, 10:05 PM
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04 C32
Why put 100 in your C? I have a modded C32 and I saw 0hp/tq gain with 100 octane vs 93.
Old 04-15-2007, 10:11 PM
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Originally Posted by jgsx
Why put 100 in your C? I have a modded C32 and I saw 0hp/tq gain with 100 octane vs 93.
We only have 91 at standard pumps in California
Old 04-16-2007, 02:10 AM
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Originally Posted by jgsx
Why put 100 in your C? I have a modded C32 and I saw 0hp/tq gain with 100 octane vs 93.
Isnt it because your ECU wasn't tuned for it?
Old 04-16-2007, 07:29 AM
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Originally Posted by Cappa26
Isnt it because your ECU wasn't tuned for it?
exactly.

i wish we have those changeble programs like on the Audi turbos.
Old 04-16-2007, 08:43 AM
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04 C32
Originally Posted by Cappa26
Isnt it because your ECU wasn't tuned for it?
Right, it is tuned for 93. Like Frank said, we can't easily switch maps, and since my car is a street car and not a race car, I don't want my only map to be tuned for 100 octane.

For you 91 octane guys, even if you got an aftermarket ECU flash tuned for 93, I don't think it would be a good idea. You could splash some 100 in with your fill up, but what about the times when you don't? Your ECU will pull back timing, and you'd most likely have less power than the ECU tune made for 91. Are you really going to have to worry about mixing fuel at every fill up, just to gain a couple horsepower?
Old 04-16-2007, 10:37 AM
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Originally Posted by jgsx
For you 91 octane guys, even if you got an aftermarket ECU flash tuned for 93, I don't think it would be a good idea. You could splash some 100 in with your fill up, but what about the times when you don't? Your ECU will pull back timing, and you'd most likely have less power than the ECU tune made for 91. Are you really going to have to worry about mixing fuel at every fill up, just to gain a couple horsepower?
Not necessarily. My ecu is tuned for 91 up to 104 and i'm running straight 101/104 all the time. And the gain is not just a couple of horsepower, it's more.

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