Isuzu Diesel Positions Top-of-the-Line Engines Under RED Tech™Isuzu has proven itself for 100 years and with the number one Cab-forward truck since 1986 and over 20 million Diesel engines Worldwide, ISUZU RED Tech™ has become the next logical step to who we are in the marketplace. ISUZU RED Tech™ focuses on our fuel-efficient, low noise, and maintenance-free Diesel engines that are designed to meet our customers exact requirements.