Title: Not a good experience.
Product review: I saw these plugs advertised on the show Gearz TV. The claim was improved gas mileage over standard plugs. Maybe so but I couldn't run them long enough to find out. One of the plugs fouled out in about 2 weeks and according to the markings on the ceramics on the business end of the plugs, a second one was well on its way to fouling out. I had a ASE Certified Master Mechanic check my truck after it started running ruff and his computer identified the bad plug. We changed them out and went back to the AC plugs and all is well. The only bad thing is I had to send them back to Amazon and only got $38 of my original $48 purchase back and that is after I had to pay a mechanic $50 for a diagnoses and another $60 for the AC plugs and installation. "Live and learn!". rc
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