Dura Lube Pour & Go Additive is a precision blend of high tech compounds. Reduces friction and heat, helps protect from oil starvation at start-up and quiets engine noise. Helps replenish key chemicals that help maintain a higher lubricity which reduces friction, heat and returns the base product to its original strength. It also breaks down sludge and varnish buildup. The need to maintain lubrication integrity is especially important in older and high mileage engines.