mid week while sipping my starbucks and reading mail on my i-pod regarding the octane discussion; I did not reply earlier as who likes to type on a micro keyboard. Anyhow; my 64 caddy sports 11.5:1 CR and even 91 is a piston valve killer. I discovered hyper-fuel several years ago and add one bottle to 15gals; I will increase octane up to 7 numbers not points! 10pts per unit, so most of the products sold in the autozones, kragens.etc just boost points and are worthless and a waste of $$$. Cannot detect a ping on acceleration and 429 loves to roll. Check out their web site @ www.hyperlube.com. Don't bother to order it thru amazon. yes they list it. I ordered 4-5 months ago and they have yet to deliver! [Non-text portions of this message have been removed] ------------------------------------ To send a message to this group, send an email to: Chrysler300@xxxxxxxxxxxxxxx To unsubscribe from this group, send an email to bob@xxxxxxxxxxxxx or go to http://autos.groups.yahoo.com/group/Chrysler300/join and select the "Leave Group" button For list server instructions, go to http://www.chrysler300club.com/yahoolist/inst.htm For archives go to http://www.forwardlook.net/300-archive/search.htm#querylangYahoo! Groups Links <*> To visit your group on the web, go to: http://groups.yahoo.com/group/Chrysler300/ <*> Your email settings: Individual Email | Traditional <*> To change settings online go to: http://groups.yahoo.com/group/Chrysler300/join (Yahoo! ID required) <*> To change settings via email: Chrysler300-digest@xxxxxxxxxxxxxxx Chrysler300-fullfeatured@xxxxxxxxxxxxxxx <*> To unsubscribe from this group, send an email to: Chrysler300-unsubscribe@xxxxxxxxxxxxxxx <*> Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/