HT4100 4.1, 4.5, 4.9 Discussion, 4.5L ACDelco Spark Plug Question in Cadillac Engine Discussion; Hi all !!! Just went to Autozone to get Plugs for my '90 Deville 4.5L . When I asked for ...
- 08-17-12 04:32 PM #1Cadillac Owners Member
- Automobile(s): 1990 Sedan DeVille
- Join Date
- Apr 2012
4.5L ACDelco Spark Plug Question
Hi all !!!
Just went to Autozone to get Plugs for my '90 Deville 4.5L .
When I asked for part #R44LTS6 , they gave me R44LTSM and when I questioned it the employee said they were correct . So I want to ask here ,are they correct ?
Thanks for your replies.
- 08-17-12 05:59 PM #2
Re: 4.5L ACDelco Spark Plug Question
I checked RockAuto.com and they specify R44LTS6 for your car.
Tip: Changing spark plugs is quite tedious on this car so you might think of installing longer lasting Platinum spark plugs such as ACDelco #41936.
- 08-17-12 07:22 PM #3