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Subject: Re: 87 octane in a 4kq? (was: Techron, CIS ill on '87 4kq)



No knock sensor on the 4000csq; 87 recommended in manual, no need for better
unless you've advanced the distributer somehow, or have carbon buildup giving
higher than stock compression.  Buy the cheaper 87 and use the savings on more
frequent doses of Techron (followed by oil changes).
Chris Miller, former '86 4000csq owner.