Originally posted by SquareHead:
Why do they "Suck"?



They are not designed for this engine and will simply wear out quickly. I've tried them out on a 4.6L Lincoln Town Car and found that they were a waste of money. Gas mileage suffered, hesitation showed up, finally, the CEL came on - misfire detected. Pulled them out, put in some Autolite Double Platinum, and all was well again.

This is one gimmick that just doesn't work right.