Full Version: Experiences with Reg or Premium fuel and the fuel switch
I was just wondering if anybody noticed a difference in performance or fuel mileage when running premium fuel with the selector switch. I tried it today and noticed an improvement in all aspects, is it in my head or is it all true. I'm running a '03 700 SKS
QUOTE(2003SKS700 @ Feb 3 2008, 09:30 PM) 
I was just wondering if anybody noticed a difference in performance or fuel mileage when running premium fuel with the selector switch. I tried it today and noticed an improvement in all aspects, is it in my head or is it all true. I'm running a '03 700 SKS
I have a 07 600 IQ Cleanfire. I just had it flashed. Now running reg fuel 115-120 miles/tank but my oil light came on at approx 150 miles. I don't know if this is normal but seems high? The sled is running great now with no hesitation.
QUOTE(kisilator @ Feb 4 2008, 12:41 AM)
I have a 07 600 IQ Cleanfire. I just had it flashed. Now running reg fuel 115-120 miles/tank but my oil light came on at approx 150 miles. I don't know if this is normal but seems high? The sled is running great now with no hesitation.
Does that have the Premium setting on the key switch?
I see 200 to 400 RPM drop just flipping from Prem to Reg setting, so yes, it does make a difference.
Running on premium advances the timing by 2* which is why the higher octane is required. This is why there is the "bump" in performance and rpm.
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