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TR4 Octane rating (was Re: R&R Rear Tranny Seal?)

To: ddelano_98@yahoo.com, triumphs@autox.team.net
Subject: TR4 Octane rating (was Re: R&R Rear Tranny Seal?)
From: ArthurK101@aol.com
Date: Sun, 26 May 2002 14:23:34 EDT
In a message dated 25-May-02 21:44:56 Eastern Daylight Time, 
ddelano_98@yahoo.com writes:



> .  Also had what sounded like
> pre-ignition/pinging on a hard uphill climb - octane
> problem?  I was running regular unleaded (87 Octane)
> with re-lead additive.  Is Plus (90 Octane) or Super
> 



If your engine is stock you have a compression ratio of  9:1 so you must use 
Super fuel.  Highest octane.  You don't need the lead additive, however.

Art Kelly '64 TR4 CT33118L (original owner/factory pickup)

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