Anybody have any experience with resolving a clogged catalytic converted issue using fuel additives that claim to be able to resolve the issue? Just wondering if anybody has had any luck with additives or did you just replace the converter.
It’s for my son’s older truck (Nissan Xterra) with just short of 100K miles on it. The idiot light is on and the code says catalytic converter. Also the car is struggling when accelerating which is a common problem when the cat is clogged.
I’m asking not in order to save $20 bucks on additives but in order to avoid additional stress an the engine as he drives around waiting for the cleaner to do it’s thing - if in fact it even works as claimed.