ATS Chemical 505 CRF Fuel System Treatment, 16 fluid ounces

4.5 4.5 out of 5 stars | 262 ratings

Price: 65.49

Last update: 02-22-2025


Product information

Technical Details

Manufacturer ‎ATS Chemical
Brand ‎ATS Chemical
Model ‎505 CRF - ATS Chemical Next Service Soon Static Cling
Item Weight ‎15.8 ounces
Product Dimensions ‎2.2 x 2.5 x 6.75 inches

Top reviews from the United States

  • Carlos Chee
    5.0 out of 5 stars Works
    Reviewed in the United States on December 28, 2024
    I used the bottle with five gallons of gas left and drove about 60 miles on the freeway, before filling the tank. So far I've noticed increased throttle response and smoother idle. Will use this once a year, and definitely recommend it. Pricier than most cleaners, but it works!
  • Peter Klu
    5.0 out of 5 stars AWESOME Product
    Reviewed in the United States on December 9, 2024
    I was very skeptical about this product. People have been raving about it all over the internet, so I decided to try it out. I emptied the content into my gas tank and added some more fuel to it.

    At first nothing happened, then all of a sudden the car started picking up and running like a jet. I have a VW 2013 Toureg.. The car started running like a brand new car. The pickup was smooth. Not like before, usually takes a while to pick up and rides a bit noisily and hesitantly. But after adding this cleaner, the engine is running like a brand new car. This is great stuff. I will buy it all the time.

    Great product. Try it for yourself. It cleans the whole engine..
  • MWS
    5.0 out of 5 stars Scotty Kilmer recommendation
    Reviewed in the United States on January 4, 2025
    A bit pricey compared to other options out there, but it works great! Had a hard idle for awhile that was throwing codes or anything, and already checked the usual suspects. I poured the whole bottle into a half full tank, then filled up the tank. In less than a fay of driving, the hard idle disappeared! Very good quality fuel cleaner. Highly recommend!
  • Leon A Flood
    4.0 out of 5 stars I saw improvement!
    Reviewed in the United States on December 2, 2024
    Well, I noticed an improvement in acceleration and idle. I’ve used the other cleaners and saw some improvements but none so drastic as the 505. I also saw some improvement in mileage.

    I’ll buy again twice a year during season change. Good stuff Thanks Scottie Kilmer!
    Customer image
    Leon A Flood
    4.0 out of 5 stars I saw improvement!
    Reviewed in the United States on December 2, 2024
    Well, I noticed an improvement in acceleration and idle. I’ve used the other cleaners and saw some improvements but none so drastic as the 505. I also saw some improvement in mileage.

    I’ll buy again twice a year during season change. Good stuff Thanks Scottie Kilmer!
    Images in this review
    Customer image
  • Only 3 months and 2 bulbs already not working not expected , can't be reliable almost couldn't get home in rain
    5.0 out of 5 stars Seems to be working great
    Reviewed in the United States on January 17, 2025
    I've never had my car run 45 miles per gallon so it's a huge improvement will monitor further more and see . It did change back to regular 37 range after a while but it's nice to see that it ran 40 to 45 at one time .
    Customer image
    Only 3 months and 2 bulbs already not working not expected , can't be reliable almost couldn't get home in rain
    5.0 out of 5 stars Seems to be working great
    Reviewed in the United States on January 17, 2025
    I've never had my car run 45 miles per gallon so it's a huge improvement will monitor further more and see . It did change back to regular 37 range after a while but it's nice to see that it ran 40 to 45 at one time .
    Images in this review
    Customer image
  • Johnny
    5.0 out of 5 stars This stuff is the real deal
    Reviewed in the United States on January 8, 2025
    I used this product in my 2007 Lexus gx470 which has 214,000 miles on it, my car is in great condition but has been slightly sluggish due to my fuel injectors likely having carbon deposits, I used this cleaner on a full tank of premium and took the car for a long drive, after using about a quarter tank I noticed a night and day difference in acceleration and overall smoothness, this product 100% worked just like Scotty Kilmer on YouTube said it would. I will definitely be buying another bottle in a few months. It’s pricey but worth it no other fuel additive has worked this well for me.
  • Misty
    5.0 out of 5 stars Is well worth a buy
    Reviewed in the United States on January 14, 2025
    Is expensive stuff but Is worth the money
  • GAMBIT
    1.0 out of 5 stars Nope
    Reviewed in the United States on November 21, 2024
    So I saw this product on the Scotty Kilmer channel. I thought I would give it a try. It had zero effect on my car. Hope this helps.

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