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

[James Marriott <marriott@micron.net>]

Ken Keith wrote:
> 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
> things.

Wrongo. I run 87 _all_ the time. I also run at stock timing. This topic
has been well-done in the past. Check the archives to see why more
(octane) is not always better. That is, find out why using 92 in _your_
(and my) car reduces Hp. Also check the owner's manual.

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

My car ran about 20k miles with me at the wheel and Mobil (really, this
time ;-) 87 in the tank. By the way, M87 has a _good_ additive package!
I had the manifold off once and it was EASY to see where the injector
spray went.

hth,
James
'87 4kq 8.5:1, no sensor, 87
'86 4ks 10:1, sensor, 87
'64 Falcon w/V-8, no sensor, 87