STPSuper Concentrated Fuel Injector Cleaner, Injector Cleaner Unclogs Dirty Fuel Injectors and Restores Lost Power, 12 Oz

I recently tried the STP Super Concentrated Fuel Injector Cleaner, and I was quite impressed with its performance. After using it, I observed a noticeable improvement in my vehicle's gas mileage, which suggests that it helped optimize the fuel system. The cleaning solution effectively removed carbon deposits and buildup in the injectors, resulting in smoother engine operation and better fuel efficiency. Overall, I would recommend this product to anyone looking to enhance their vehicle's performance and economy.

I believe I'm getting 1 more MPG since using this product.

After I paid the dealer to clean the engine I was told because I only do short trip, I have to take the car out on the highway now and then.Well, I decided to try this product and see if it works. Have to say, it was the best 10 bucks I've spent.The car runs great and the mileage has increased from 33 MPG to 39 MPG.Not bad for a three year old car and still no highway driving.

Used in my 2011 jetta. Throttle response after some driving seemed to improve. Will buy again

Needing more fuel injector cleaner for either your car or truck? This larger size of concentrated STP fuel injector cleaner offers cleaning for either trucks or large vehicles. Because this larger size is not frequently offered in many of the retail stores in my area - it is a rare find.

Worked with a lot of additives over the years. But this product's performance was obvious. The best part wasduring acceleration. No burnouts, no donuts (PS law enforcement lol) just a great boost. Not sure about mileage though. But happy with the overall results. Well worth the price.RLC

This really worked to clear up a worn catalytic converter problem that was keeping my engine light on. Mechanic recommended two bottles of this and a tank of supreme gas. No more engine light and it has lasted at least a month.

Had a really bad idling problem with my old 2007 yukon truck. Mechanic said may be bad gas or build up. I bought this after some research and a couple of days later the rough idling is gone.it drives mooth now and no vibration when stopped at a light.