""Jim Miller WB5OXQ"" <wb5oxq@grandecom.net> wrote in message
news:001001c32644$31849530$9c0c9b18@homebrzelqshma...
>
> I notice that the 5.7 hemi currently installed in Rams calls for 89
octane.
> Is this due to higher compression in the hemi?
I believe dodge "recommends" 89, but 87 is acceptable. They may be worried
about pinging under heavy loads when the engine is really hot - but that's
just my guess.
This archive was generated by hypermail 2b29 : Fri Feb 06 2004 - 11:46:22 EST