Having dealt with 440's since they were new, I will confirm the
Autolite #85's are the plugs, not P or PP. The platinum does
absolutely no good and is a waste of money.
Henry
Christopher H wrote:
Tom,
I’ve never had good luck with Champions in Mopars, and this issue comes
up here often enough with some Champion loyalists and then a bunch of
us who swear by Autolites (#85 fits our Imperials).
Plugs are considered a maintenance item but they should last for years
in a car that’s only occasionally driven. If they are clean and you’re
not having a pinging or hot-running-up-hills problem, then maybe just
switch to Autolites when the plugs need changing. I used to get about
5,000 miles from Champions before they would foul, and I honestly don’t
remember when I put the Autolites in but it’s been at least 5 years.
As for modern plugs like iridium or even platinum, use them in your new
cars or imports (I do), but never in a Mopar!
Chris in LA
67 Crown
78 NYB Salon
On 9/4/06 6:04 AM, Crestonave@xxxxxxx at Crestonave@xxxxxxx wrote:
I've
owned my car for four years (third owner) and never touched the plugs.
Are these considered a maintenance item which should be changed
periodically or should I just leave well enough alone? I only use the
car in the warmer weather. The most I put on the car would be 1500
miles/year and it's probably less than that. The car is running fine
(maybe a little rough at idle). I pulled a plug and from what I can
tell the plug looks ok. The wires look pretty clean and new. I did put
an electronic ignition in the car when I got it.
The plugs currently in the car are Champion RJ12YC. Should I change the
plugs? What would you suggest I use? Any benefit to using a higher-end
plug such as NGK Iridium?
Thanks for the advice.
Tom
1968 Crown convert
1960 NYer coupe
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