Review on Pack Of 6 Chevron 65740-CASE Techron Concentrate Plus Fuel System Cleaner - 20 Oz. For Improved Engine Performance And Efficiency by Ryan Rodriguez

This product can be regarded as a 'prescription drug' for one's vehicle. In the absence of a double-blinded clinical trial its effectiveness cannot be known. Of course, there are no clinical trials for fuel additives. So I base my judgement on my prior (and anecdotal) experience with Chevron products, namely their gasoline. That experience has been good. I regard Chevron gasoline as the 'best' I've ever used. So, I am inclined to believe this product of theirs does what they say it does. May I say again anecdotally that I've never experienced problems with my vehicles' carburetors/fuel injectors when using top-tier (toptiergas.com) gasoline in conjunction with an annual treatment of an additive such as this and with the use of fuel stabilizers (such as Stabil) for winter storage. Even with this regimen I have had small engine failures (weed wackers) due to the damage caused by the foolish addition of ethanol to gasoline. Ethanol immersion can destroy small engines with very small carburetor passages and materials not designed to withstand it.