fuel mix?

[plydus340]

I forget where I heard it but " mixing mid grade, and high grade fuel in equil parts makes higher octane than the high grade". I would not have paid any attention but my buddy heard the same thing. Anybody tried it? Seems increadable, but I thought I'd pass it on.

[mtrv8n]

not true, but you can save $ by mixing grades if you don't need the high octane but want to up the ante a bit.

[ehostler]

ROTFLMAO...

if you mix two different grades in equal quantities, you add their octane numbers together and dived by 2, to get the octan produced.

Did you know that there is no TRUE mid grad gasoline at your gas station??? The pump has a mixer in it. When you choose mid grade, it mixs the high octane and low octane fuel and spits it out of the nozzle.

[rumblefish360]

That was actually true years ago. The oil companys found this out, and changed the mix up so it's no longer possible to do.
Not a wives tale. True stuff.

[Slant Cecil]

That was true back in the days when there was leaded and unleaded gas. The lead in reg gas gave a octane boost to high test unleaded that was greater than the octane loss that occured when lower octane is mixed with higher. Due to the 'law of diminisning returns', only a small amount of leaded could be used before the octane boost/loss benefit became a loss/boost deficit.

Cecil