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87 octane in a 4kq? (was: Techron, CIS ill on '87 4kq)

James Marriott <marriott@micron.net> wrote:
> Ken Keith wrote:
> > 
> > > James Marriott <marriott@micron.net> wrote:
> > > 
> > > ~Full tank of Mobil 87 (with OEM Techron! ;-)
> > 
> > does the above mean that Mobil gas has Techron in it from the pump?
> I use _Chevron_ in Idaho, which of course comes with Techron.


One more question.  You can run 87 octane in your 4k with good results?
I thought you _had_ to run super/supreme/premium/92+ octane in these 

I don't even know if I've ever tried running anything less than 92 octane, 
but I seem to remember that if I (or someone) did, it would not run good.  
Maybe it's in the owner's manual or something, I got it from somewhere.

I wouldn't mind running cheaper good gas during the week for my commute if 
I could.  Can I?