Chevron Techron 266701317 Concentrate Plus Fuel System Cleaner - 32oz

A good product received from abroad quickly. Amole quantity must have in cars with fueling.

works magic with the fuel system and fuel efficiency

Does what it advertises if you follow instructions ;o)

De los mejores. Restaura el rendimiento de combustible. Solo que es necesario seguir las indicaciones.

Half bottle of 32 oz Techron conc plus fuel system cleaner was added to a full tank of 60 litres of gas and would help to restore the engineer performance by the time half tank of gas fuel was consumed. Great Stuff!!! I will use it again.

Worked as advertised

NOTE: If you are serious about buying this, see my caution below about putting it into your tank! I had a check engine light pop-up, and since I keep an OBD2 reader around, I went ahead and took a look. It came up as a low voltage in one the of 2 front O2 sensors. Given the number of miles on the truck, it wasn't a shocking thing at all - indeed, I had a full set of O2 sensors on hand for it already and just hadn't gotten around to it. After getting the apparently faulty unit swapped out, things were great - briefly - then the original error came back exactly as before. Intermittent problems = nasty to troubleshoot, so I did not have it resolved when a 2nd OBD2 error started being thrown - an issue with the fuel level sensor (a horror show to swap out if you have to do it). In investigating all the possibilities I got put onto running this stuff on at least 2 full tanks of gas. Since both issues were intermittent, it's hard to know if you *really* got the core issue resolved, but since things stuff first went in the tank, neither error has popped up again. Still too early to tell, but other owners of my model (an F-150 Ecoboost) frequently report noticeably improved fuel economy, so we'll see how that plays out. NOTE ABOUT PUTTING THIS IN THE TANK: I believe the sizes below the 32Oz I bought come with a nozzle built in that mimic's a fuel nozzle, so if you're ordering those sizes, you're probably fine, but keep in mind that this is a burnable, hazardous material. If it does not go in all the way (I would test it before breaking the seal), it will dump to the ground instead (a mechanical protection against people trying to sabotage your car by contaminating your fuel). For the 32Oz size or anything above that, you'll need to use a funnel or some purpose built attachment. There is a protective plate at the top of your gas receiver that is designed to only open when a specific size tube (matching an Unleaded fuel nozzle) is inserted. That plate will block your funnel from going in unless it is exactly that same size, which, since most funnels are tapered, it is unlikely size up correctly unless it is specifically built with fuel tanks in mind. You can find that kind of funnel here on Amazon. Alternatively, you can use an empty portable fuel tank if you have one, put the additive in that, and then use that to put it in the vehicle's tank. If neither of those is available, you can bypass the safety in the fuel receiver by triggering the related release points manually, but I will not provide detailed instructions for that here (spend a few extra bucks and buy the purpose built funnel!).