Great products, very professional and answered all of my questions. I now get better gas mileage using Amsoil!

Big Don does what most business owners lack in todays world. He started lexington synthetics to provide SC with the best in automotive, motorcycle, boat, and semi engine protection. He has tried this product on everything him and his family owns from lawn mowers to heavy duty trucks. This stuff is amazing. I use the XL oil in my truck and do 10,000 mile oil changes. Its not completely black when I drain and thats saying a lot after 10k miles! His business model is not profit driven as he works a day job. I will say that he cares and will provide you with excellent support so that you can protect your investment with Amsoil.