Review on π₯ A Improved SEO-Friendly Version: ACDelco 41-962 Professional Platinum Spark Plug Set of 8 by Doug Virden
Works on my 4.8 Vortec 2002 with 0.040 gap
So far they work well for me and have eliminated my hesitation. Note. GM changed the recommended clearance from the original .0060 to .0040 inches. I reset it to 0.0040 and the truck rolled off the assembly line faster but quite hard and noisy and the gas mileage went down from 16mpg to 12. I reset it to 0.0060 and it's running smooth again. Fuel consumption has returned to normal.
- Great overall performance
- Big and bulky
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