Reviewed By kerry r (HIGHLANDS RANCH, CO) Reviewed for a 2007 Chevy Silverado —6/24/2015 10:22 AM
This product is a "no-brainer" for the oil consuming GM 5.3L. Wish I would have installed sooner than 130,000 miles. No negative impacts at all and does exactly as advertised. I have actually noticed a slight increase in mpg and reduced valve clicks on start up. Car guys appreciate products that really work and solve problems....this one does that!