I own a VW TDI Wagon. Engine Light was on and I was told I needed to replace the Diesel particulate filter for the low cost of only $2,300. Thankfully I did some research and found your product so I figured spend less than $20 what is there to lose. I filled up and went on a road trip. The light went off an on for a while however around mile 150 the light went off and has not come back on. Also the car at stops would experience a hesitation when stepping on the gas. Since that 300+ mile road trip that has stopped also. Thanks for delivering on the promise of saving me over $2,270! I will use products with total confidence. Hope this also helps many others!

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