Maxima . . . Premium? Regular?

#11

No One wrote:

Quote:

Steve T wrote:

I live at about 2200 feet. I "get-on-it" regularly. I live
outside of the city and there is plenty of 'zoom room' for me.
It DOES go better with premium though.

And would get better gas milage as well as not overheat the
exhaust valves.

It does get better gas mileage with premuim but the 'cost per mile'
is about the same.

So why use the cheaper gas? You lose performance, damage the exhaust valves
and manifolds, and then save nothing..

Quote:

What does octane rating have to do with valve temperature?

Nothing.

The ignition timing on the other hand does have a direct relationship to
valve and manifold temps. The clue here is: what does the knock sensor do
when the car has cheap gas in it? Retarded spark timing overheats the
exhaust valves and the cylinder walls.

Quote:

It just doesn't ping with regular or 87 octane.

Of course it doesn't, it has a KNOCK SENSOR!

I KNOW that. I merely put it in as there are a couple people that
say it WILL ping.

Actually it does ping until the knock sensor hears the detonation and
retards the spark.

--

Steve

http://www.atlantaracing.com

#12

My brother bought a 350 Z last year and you can use and grade gas! He
called up the dealer and asked why since his maxima requires 91and the
person that sold him the car said that was correct and he could not explain
it either.
"Steve T" <fotocord (AT) yahoo (DOT) com> wrote

Quote:

No One wrote:

Steve T wrote:

I live at about 2200 feet. I "get-on-it" regularly. I live
outside of the city and there is plenty of 'zoom room' for me.
It DOES go better with premium though.

And would get better gas milage as well as not overheat the
exhaust valves.

It does get better gas mileage with premuim but the 'cost per mile'
is about the same.

So why use the cheaper gas? You lose performance, damage the exhaust
valves
and manifolds, and then save nothing..

What does octane rating have to do with valve temperature?

Nothing.

The ignition timing on the other hand does have a direct relationship to
valve and manifold temps. The clue here is: what does the knock sensor do
when the car has cheap gas in it? Retarded spark timing overheats the
exhaust valves and the cylinder walls.

It just doesn't ping with regular or 87 octane.

Of course it doesn't, it has a KNOCK SENSOR!

I KNOW that. I merely put it in as there are a couple people that
say it WILL ping.

Actually it does ping until the knock sensor hears the detonation and
retards the spark.

--

Steve

http://www.atlantaracing.com

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Maxima . . . Premium? Regular?

Nissan Maxima Discussion of the Nissan Maxima Automobile (alt.autos.nissan.maxima)

Re: Maxima . . . Premium? Regular? - 08-12-2006 , 02:21 AM

Re: Maxima . . . Premium? Regular? - 08-25-2006 , 10:59 PM