Quote:
Originally Posted by Mr. 5
I didn't know this.
The leaded fuel doesn't do anything to the o2 sensors or motor?
I assumed you were running MS109.
I can't run anything higher than MS109 due to my secondary cats.
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It really doesn't matter either way. MS109+meth has more than enough knock suppression for anything you could possibly throw at it. I just used 110 leaded because it's available at my auto parts store (MS109 isn't) and I have no cats. The o2 sensor issue isn't much of an issue unless you run it constantly. Running 5 gallons 5 or 6 times a year wont do anything to them. The only down side is that running 110 unleaded on a mild tune may actually make the car slower. Best left for higher boost/power applications only.
Shiv