Northstar Engines and System Technical Discussion Discussion, Plugs - Spark plugs for a Northstar ?? in Cadillac Engine Technical Discussion; What is the best sparkplug to put in the Northstar ? I have 116 k on the same set of ...
Automobile(s): 2002.5 F55 STS/65500mi, 2004 Ford F150 SuperCab4x4
MD Eastern Shore - Kent Island
Re: Plugs - Spark plugs for a Northstar ??
Originally Posted by bobstanster
Sorry , 2003 DeVille with 116,000 on the clock
Update your profile "What I drive" - and your login header will change to something like ours ^^^. You can supply a bunch of necessary, oft-repeated info that way...........
You may find that your original plugs are DENSO models - not to worry. DENSO makes the AC Delco platinum plugs for Cadillac: the AC Delco #41-987 is the same plug. Read the box. Some of the 2002 - 2003 owner's manuals still listed the DENSO plug number.