I just wanted to share my experience with your product. I had a Jasper engine and transmission installed in my 1989 Chrysler Le Baron. Within two months of installation my son and I put your product to an extreme test by driving from Chattanooga, Tennessee to Prudhoe Bay, Alaska and then back home via California in only three weeks time. Your engine and transmission performed flawlessly whether operating in the snows of Antiqa Pass (with its 12% grade) or in the deserts of California, Nevada, and Utah. We went from sea level to several thousand feet in elevation without using a drop of oil or experiencing any problems during the almost 11,000 miles we traveled. All I did was change the oil and filter every 3 or 4 thousand miles (depending on how handy a service center was) and changed the air filter. I bought your product because of the good experience I had with my 1970 Camaro's Jasper engine. Instead of buying a new car I saved thousands of dollars which could be used on such things as trips to Alaska. I'm hoping to repeat the drive to Alaska in the next few years but this time take the Camaro. - Steve L.