87 or 89 Octane Gas in Pacifica

[rfuqua]

Does anyone in the group put 87 octane gas in their Pacifica. If so,
how is the performance. Thank you.

 

[Dll]

Does anyone in the group put 87 octane gas in their Pacifica. If so,
how is the performance. Thank you.

What is in the owner's manual?

I doubt anyone here has a dyno to measure a difference. Therefore, all you
will get is an emotional or otherwise worthless opinion.

N

 

[maxpower]

Does anyone in the group put 87 octane gas in their Pacifica. If so,
how is the performance. Thank you.

hmmm. 87 octane fuel is the only recommended fuel for this vehicle. The use
of a higher octane fuel could cause drivability problems in the long run.
Over a period of time High octane (slower burn) fuel could leave deposits on
the pistons and cause stalling, hesitation and even pinging problems. Just a
thought

Glenn Beasley
Chrysler Tech

 

[Vaughn]

The 3.5L 250HP engine requires 89 octane fuel in my manual.
87 is okay but they recommend mid-grade.

 

[maxpower]

The 3.5L 250HP engine requires 89 octane fuel in my manual.
87 is okay but they recommend mid-grade.

You didnt specify year, I looked up 2005 and 2007, it stated 87 octane

 

[Vaughn]

I have an 06 Charger SXT with the same 3.5L and it says to use 89.

 

[maxpower]

I have an 06 Charger SXT with the same 3.5L and it says to use 89.

That is true, that application specifies 89 octane