100 octane in a 58 Imp ????

["Phil" <hilljack7@xxxxxxxxxxxxx>]

I agree, but I've been using regular in my 68 coupe, it generally gets driven fairly easy, just cruising around locally. Also, I wonder if the pre 68-post Hemi wedges are slightly more sensitive to octane. All 58 to 67 big blocks have a smaller, closed combustion chambers, and the way they are cast, the edges of the chamber have the ability to create hot spots more readily  than the open chamber 68 and later heads, or the Hemis. I've just wondered if these 59 to 67 Imps are touchier about octane, then the cars built previous or after? Any owners or people familiar with both?

Phil <><

----- Original Message -----

From: Antiquefox@xxxxxxx

To: mailing-list@xxxxxxxxxxxxxxxx

Sent: Monday, February 25, 2002 1:02 PM

Subject: Re: IML: 100 octane in a 58 Imp ????

In my ancient experience the higher the octane produces cleaner burning and an increase in power.  Lower octane gas in high performance engines will result in doing repairs sooner.  I think our cars are worth it. Much has been written by car companies about the feasibility of using lower octane (regular) in their cars.  Perhaps this is true with the lower performance engines but, remember that this information is from people  who are in the business of selling you new cars.

Bob Becker

76NYB(440engine) 81 IMP (318 engine)