Hot Shot’s Secret™ announces a new 10W-30 blend in its Green Diamond Fleet Full Synthetic Group III/Group IV engine oil line specially formulated for use in diesel powered vehicles that experience extreme temperatures, heavy loads, stop and go operations, or high airborne particulates. It is a replacement for any CF-4, CJ-4, CI-4, and CI-4 Plus specification oil, and is infused with Hot Shot’s Secret FR3 Nano Technology and is fully formulated CK-4 additive package. This 100% synthetic diesel oil effectively cleans, lubricates, and maintains engines and turbos for long-lasting protection, improved performance and fuel economy, and longer oil drain intervals. For more, visit