5.0 out of 5 stars Must have for serious drivers

G. · June 8, 2025

(function() { P.when('cr-A', 'ready').execute(function(A) { if(typeof A.toggleExpanderAriaLabel === 'function') { A.toggleExpanderAriaLabel('review_text_read_more', 'Read more of this review', 'Read less of this review'); } }); })(); .review-text-read-more-expander:focus-visible { outline: 2px solid #2162a1; outline-offset: 2px; border-radius: 5px; } I was told to use these one every oil change on my new Kia 2022 K5 and my engine literally every time I put this bottle in runs like new again and it maintains it throughout the 3,000 miles if not longer knock on wood so far the stuff is really amazing. Huge advantage of the line especially with engines with GDI that have direct injection of fuel. Especially good on turbos and superchargers this stuff really works amazed I've been using it for years I just had time now to do a little small review but it is really good stuff

5.0 out of 5 stars Works great

M.F. · June 9, 2025

Let you know that it's not the quote on quote snake oil that some people may say it actually works it's been proven I've used it in an older car with a crappy motor and it made a difference so bye with confidence

5.0 out of 5 stars Top rated

C. · June 5, 2025

I have 3 vehicles model years 2006, 2013 and 2021. I used the Chevron fuel injector cleaner as routine preventative maintenance. I believe adding this and keeping up with the auto maintenance keeps my vehicles in good working shape.

4.0 out of 5 stars Works. Don't be surprised if your bottles leak in shipping.

E.G.M.I. · April 3, 2025

This stuff actually works, showing an immediate increase in fuel economy in both of the cars we put it in.That said, ALL 6 containers came with loose lids and foil seals that weren't attached. Half the shipping box was thoroughly saturated. I can understand one, but all 6 bottles? I'd give it 3.5 stars purely because of the leakage.

5.0 out of 5 stars Incredibly Good!!!!

B.A. · June 13, 2025

Being using this for my two vehicles for years! The best product for your carburetor and fuel tank!

5.0 out of 5 stars Actually works, unlike most others

M. · February 15, 2025

I bought a 72,000 mile used Camry, 2.4L classic engine, with good service as shown on Carfax. I live in California so our cheapest gas has twice the Federal required level of detergent in it. Top Tier brands (Google search for Top Tier Gasoline) has 4 times the Federal required level of detergent and is available country wide.So there are 3 levels of detergency: Federal; California minimum; Top Tier branded gasoline (ARCO, Shell, Chevron, 76, most big brands).It’s impossible to know what kind of gas went into my recent used purchase. I’m assuming the cheapest, which - except for Costco - means California minimum, twice Federal minimum though.My new used car ran fine. Maybe a little rougher at idle than it does now, 1200 miles later. Since I got it, I’ve been running a 12 ounce bottle of Techron at each fill up. Tank holds 14 gallons but my fills have all been between 9-10 gallons.I have a certain consistent route about 40 miles outbound and inbound, free flowing freeway traffic. Very consistent route to freeway. Very consistent morning temperatures during warmup.I have seen my route change from 28.5 mpg, as indicated on the dash computer, to 30.3 mpg.I am finished with my “cleaning cycle” and will henceforth only purchase Top Tier fuel, which. should be sufficient (the car makers validate their clean air systems on Top Tier fuel) and add a bottle of Techron at each 1000 mile odometer point (on my cars purchased new I don’t add Top Tier ever). I am hoping to gradually and gentle clean up any valve and piston top deposits.You’d think by now, the main ingredient in Techron would be available in a $5 knockoff. Sadly the competition uses old snake oil ingredients from the ‘50’s and ‘60’s. Techron is the real deal.

5.0 out of 5 stars Works fine

Y.C.G. · June 2, 2025

I use this things in all my cars. Even the ones running e85 in order to keep everything working as it should. Some of my friends started using it too and they are happy

5.0 out of 5 stars Very economical for multi cars

J.S. · June 3, 2025

Ive got 4 cars in my family so this helped take care of them all with an affordable price. Very quick and easy to use and protects my engine.

Excellent!

T. · June 7, 2025

(function() { P.when('cr-A', 'ready').execute(function(A) { if(typeof A.toggleExpanderAriaLabel === 'function') { A.toggleExpanderAriaLabel('review_text_read_more', 'Read more of this review', 'Read less of this review'); } }); })(); .review-text-read-more-expander:focus-visible { outline: 2px solid #2162a1; outline-offset: 2px; border-radius: 5px; } Impressive results!Had the engine open before adding noticed lots of carbon build up, after using this product saw it was significantly cleaner. It really does clean the combustion portion of the engine. Great product!

Revived My Z06's Fuel Gauge

T. · March 10, 2024

I had been dealing with an annoyingly faulty fuel gauge in my C6 Z06 for months. It would get stuck reading empty no matter how much gas was actually in the tank. Extremely frustrating!After trying a few other fuel system cleaners with no luck, I decided to give Chevron's Techron Concentrate Plus a shot based on its good reputation. I'm really glad I did!I followed the instructions, adding one bottle of the cleaner concentrate to a near-empty gas tank and then filling up. After putting a couple tanks of gas through while using this stuff, the fuel gauge started working properly again.It seems the Techron was able to clean out whatever gunk or deposits were causing the fuel sender unit to misread and get stuck. The active detergent ingredients must have really knocked everything loose.Not only did it fix my gauge, but I could feel a noticeable improvement in engine responsiveness and power after using this quality cleaner. No more hesitation or rough idle.For any C6 owners struggling with fuel sending unit gremlins, I absolutely recommend picking up a pack of the Techron Concentrate Plus before taking more drastic measures. This cleaner has some serious resolving power when it comes to fuel system woes. Well worth the money for a working gauge again!

It Works

K. · August 2, 2022

After 30,000 kms odometer reading, this is the first time I added this fuel additive in my X3 30i and got a great result. Picked up the 20 oz (596 ml) bottle. And used it in 150 ml +150 ml + 300 ml in every alternate filling to my 65 ltrs petrol tank. Engine is very much smoother now, no more rough idling at start ups and experiencing instant power surge.Surely will use again after 5000 kms.What disappointing is the price is ever increasing, with-in a span of last two months, price gone up by 1000/- . That is shocking.

It works as stated

A.C. · August 25, 2022

Refresh engine

Original and Genuine

a.a. · March 9, 2025

Original and Genuine