So far I've tried STP, redline, and I have a bottle of lubro moly jectron cleaner but haven't tried yet. So far I haven't noticed any big differences but I've only had the car for a month and the injectors could have already been cleaned before I got it.
Fuel injector cleaner will help but if you do plan on putting it in don't let the cleaner stay in your system longer than 2 weeks. And hopefully if you do put it in 3 times you should be using a tank a week. Reason being injector cleaner will clean your injectors but also if it sits in your system for a while it begins to eat away at the rubber parts (mainly hoses) due to the solvent in the cleaner. And with the car having some age to it the hoses are not exactly new anymore. Otherwise injector cleaner is good once in a while, unnecessary really to put it in something to the extent of every other tank of gas.
I like Lucas products, though I've never tried their injector cleaner. They're good quality products and the company itself isn't flashy or showy either. Lucas is just kind of there and always has been.
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