I have been using Lucas products for years . I recently purchased a 2005 Toyota Camry LE with the 2.4 vv-t engine. After having it a few days, i changed the oil and added a quart of Lucas oil stabilizer to it. I wanted to protect it now, and benefit from the performance and extra fuel economy. I also use it in my parents cars, 87' Chevy Celebrity 152,000 miles and 94' Buick Lesabre 91,000 miles and in our lawn mowers. I recommend it to everyone who owns a vehicle. Thank you Lucas for making a great product.