doc540
Well-Known Member
What say you to blue?
What fuel?
From the pump or 5 gal cans like the stuff sold at napa for small engines?
Hmm- sorry dont have an answer for pump gas. I ran into the same issue with the VP non ethanol fuel on small engines. I called the tech line and they told me there was a chemical in the fuel for preservation. They told me it was not harmful and would burn off with temp change / timing shift. So far no issues.
91 octane, ethanol free
I believe You think it is ethanol free fuel, but I do not. That is WAY too light to be ethanol free fuel, IMHO. I think someone has told you a fib.
That’s a hot plug and lean mixture fer sure .
VP Racing Fuels, local from the pump
Regardless of what it really IS, my Slant idles smoother, runs better, and gets better mileage.
I've seen blue, green, and rose colors on plugs in the past..... always figured it was from additives.
IMHO, the above 'lean and hot' reads are getting fooled by the modern fuels. Put an AFR gauge on it, and it will be in the 14-15 range cruising (maybe a tad higher even), which is fine, and really where it is supposed to be for regular driving.
We need to see down into it.That’s a hot plug and lean mixture fer sure .
All I know , is the farther the porclin hangs out the hotter the plug
Be careful to mind the difference between what you know (lots of other stuff, I'm sure) and what you just think you know (this thing about "the farther the porcelain hangs out the hotter the plug", which is wrong).