is periodic fuel injector cleaner really needed
I typically never use fuel injector cleaner additives other than once every decade or so. Most of the gas around here is name brand, which should have some additives in it. I ask as an injector apparently went bad on my daughters car. But we're talkin' about a 17 year old car with 150K miles on it. So might be a case of age rather than gummed up injectors. Or maybe both?
So is it a good idea to dump in some cleaner ever X number of months or is it not needed unless a problem is suspected? I suspect there is no good answer, only opinions.