MoPar Man wrote:
> Tiny wrote:
>
> > I'm considering the purchase of a 2006 Charger with the 3.5L V6.
> > I'm concerned about the recommended octane level for the 3.5.
>
> If it's the same engine they put in the 300M's, then my 2000 300M does
> just fine on 87 octane. That's all I ever use.
>
> > I've read that 87 octane is "OK" to use in the 06 3.5 but there
> > must be a difference or 89 wouldn't be the primary choice.
>
> The horsepower, torque, 1/4 mile times they publish are probably using
> 89 or 91 octane. That's why they say the recommended octane is 89 -
> so that you don't complain to them when you don't get the 1/4 mile
> time that Road and Track says they got.
>
> Recommended is basically bull****. It's when they say "required" that
> you have to sit up and take notice.
>
> > What problems will I have if I use 87 exclusively? (pinging,
> > loss of power, etc.) Thanks.
>
> With electronic timing and ping sensors, and the fact that the lowest
> grade of gas you can find is basically 87, even engines designed to
> use 89 (which I'm sure the 3.5l isin't) can get by with 87.



I have an '06 Ram with the Hemi and in the manual it says to use 89
octane. I've read stories where people have used 87 instead and have
had to have all fuel lines and fuel rails replaced. I just look at it
as spending a few more dollars for something that's required.