... that the combustion of fuel is close to 100%.3. product features1, enhance power2, save fuel3,extend the ... carbon desposit, it will not dissolve the inside metal of engine too, this product’s ceramic components ... ,000kms, then replace the old oil and filter 3, so that exhaust gas purification effect is the ... . 10.packing:11,more product detail: China high quality powerful magnetic fuel saver for car