I've tried Techron and it's OK I guess... Honestly there really isn't a lot of gain to be had by fuel injector cleaners, ESPECIALLY stuff off the shelf. Just like drugs, anything off the shelf is made for the people with the mindset that "if some is good more must be better", when that's not always the case.
I have had noticeable results with a product called BG 44k. It's about $20/can but it did actually make my engine run noticeably smoother (in a different car but results should be similar).. Worst best, in my experience, adding it to a full gas tank and then doing as much highway driving as possible.
For newer/lower mile cars like most of ours, I don't really think it does a whole lot. I mean, it can't really hurt but I don't think it's doing a whole lot.
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- Wes
2007 BMW M Coupe
2016 VW GTI
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