I have always used RN13LYC (don't forget the L!), or Autolite 945s. These
are the closest to the original 68ER plugs, which are no longer available.
The Autolites are getting very scarce also.
The correct gap is 0.035", not the 0.048" given in the manual. I don't
understand how the core support label could recommend RN12YC - I don't think
that would be correct for any of these cars, except possibly the carburetor
converted ones. The core support label on all the EFI cars I have seen
recommend the 68ER.
These cars like to be driven. As you know from reading your engine
performance manual, the computer "learns" your driving and engine conditions
with use, and keeps the car close to optimum more of the time, the more you
drive it.
Dick Benjamin
----- Original Message -----
From: "William" <mopar@xxxxxxxxxxxxxxxxxx>
To: <mailing-list@xxxxxxxxxxxxxxxx>
Sent: Thursday, April 25, 2002 7:54 PM
Subject: IML: 81-83 EFi Spark plugs
> Hello all,
> I am ready to change out the plugs on my 83 EFI. I bought RN12YC Champions
> to put in it (that is what it says in my FSM and on the rad support), but
I
> found on imperialclub.com that someone recommended RN14LY plugs. I tried
to
> search the archives, as I am sure this has been covered hundreds of times
> before, but it keeps crashing my browser. Should I ditch the RN12YC's and
go
> with the 14YL? What is the difference? I am not looking to open up a
debate
> of which brand is better, I have my reasons for using Champs, I just want
to
> get the best one. Any suggestions on gapping? 0.048? The car is running
> better with every mile I put on it for some reason, and I am enjoying the
> car more than I thought I would. Thanks for the input.
> William
> 83 EFI
> Edmonton, Canada
>
>
>
>
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