120019 Cataclean - Fuel and Exhaust System Cleaner - Gasoline - 16 oz. Twin Pack

**** The 120019 Cataclean Fuel and Exhaust System Cleaner presents a mixed bag of experiences among its users, ranging from remarkable successes to disappointing failures. Many customers express satisfaction with the product's effectiveness in clearing up check engine lights and improving fuel efficiency, especially in older vehicles. For instance, one reviewer reported that their 1987 Scirocco passed an emissions test after using Cataclean, attributing the success to the cleaner’s ability to restore functionality to the catalytic converter and oxygen sensors. Furthermore, another customer noted a significant increase in miles per gallon, demonstrating its potential for enhancing fuel economy. However, there is a notable segment of users who reported adverse reactions to the product, indicating that it damaged their vehicles instead of providing relief. Some experienced worsened performance, leading to costly repairs and frustration. Concerns about product authenticity also surfaced, with one user suggesting that the quality may vary based on where it’s purchased. Overall, while Cataclean has proven beneficial for many as a solution for engine issues and smog tests, others advise caution. The discrepancy in effectiveness may be linked to the specific vehicle conditions or potential inConsistencies in product quality. **