With the help of customer service, I chose this ultrasonic cleaning liquid. Please note that ultrasonic liquid cannot be used to test the injector, which will damage the machine. The test liquid should be alcohol.

The AUTOOL CT450 is a solid injector cleaner. Heats fluid well, ultrasonic cleaning works great on carbon buildup, and the multi-voltage support safely handles GDI injectors. The 6-cylinder design saves a lot of time. Very reliable tool for the shop.

The device works perfectly. I’m very satisfied with the product. One small downside is that the manual could be more detailed — not only about the functions, but also regarding assembly and the included accessories, so I wouldn’t have to figure everything out on my own. Despite this, I’m glad I found this company, and I’ll definitely buy from them again in the future.

The CT450 is AUTOOL’s new fuel injector cleaner. I purchased it immediately and found the cleaning results to be excellent. It can heat up to 50 degrees Celsius, and I use it very frequently. Many customers come to me specifically for this product and are extremely satisfied with it.

High quality product, not only can easily remove carbon deposits, but also can clean other parts, simple to operate, suitable for purchase

Using the ultrasonic cleaning solution in the Autools ultrasonic cleaner, carbon deposits are easily removed! Then, testing the injectors in the test tube, connecting the injector harness, and clicking start is very simple! The operation is easy, and I highly recommend it. No problems were encountered during use.

An essential injector test machine for every workshop! I use this test fluid now, because I broke the pump last time I used ultrasonic fluid as the test fluid. I regretted it, but fortunately AUTOOL sent me a new pump for free to repair it. Now everything is working fine. Thank you very much.

Our workshop used this fuel injector cleaning machine to clean the carbon buildup in the intake manifold/EGR connection area, and the results were outstanding! The inner wall of the component was originally covered with thick oil sludge and carbon deposits, which severely affected the intake efficiency. By connecting the cleaning fluid to the machine and using the air pressure spray function, the carbon was quickly softened and flushed out — all without having to disassemble the engine, which saved a lot of labor time. After the cleaning, the engine idle became stable again, and throttle response significantly improved. This machine not only thoroughly cleans fuel injectors, but also supports intake system cleaning — truly an essential piece of professional equipment for any workshop!

Trusted seller. No issue on my order. Perfect communication with seller.

You’ll definitely find the answers to all your questions here, and I love that it’s heated. But I’m not sure what cleaning and testing solution I should use. When I send a message to the after-sales team, it will tell you a lot of details about the use of the machine, you will know how to use the machine, what are the precautions for it, and what kind of quality service their team can provide for you.