I would say that I am satisfied with the performance. However, it is not possible for me to understand the difference compared to the semisynthetic Toyota lubricants and the full synthetic ones from Shell Helix. Nevertheless, the engine runs smoothly in my 2007 Auris 1.6 with an oil change every 10,000-12,000 kilometers or per year. I will probably choose them again.

Made in the States, proven to be far better than anything else I have tried. It surpasses the wss 913 a, b, c, d Ford specifications. Tested on a 2009 Ford Fiesta 1.25 with 82 horsepower and 136,000 kilometers

In Ford Focus, I used the classic 5w-30 Formula F from FORD and Castrol, which was recommended by the dealership.
At around 15,000 kilometers per year, I had a loss of about 300 grams until I tried this specific Valvoline oil.
Literally ZERO oil loss, no difference in engine performance or noise observed.

In an improved ecoboost 1.6 engine, I had only used Castrol edge professional oil, which is an exceptional oil. For a change, I used this specific Valvoline oil, resulting in a noticeably quiet engine, zero oil consumption, and slightly more lively acceleration. This particular lubricant delivers on its promises, making it difficult for me to go back to Castrol.