Isuzu:Class 3 NPR Gas (shown) and Class 4 NPR-HD Gas, with a GM-built 6-liter gasoline V-8 and Hydra-matic 6-speed automatic, gets to 20-25% of Isuzu's sales. Diesel takes 75-80% of sales, but is divided between the 5.2-liter 4HK1-TC inline 4 that powers the Class 4 NPR-HD and the Class 5 NQR, and the 3-liter 4JJ1-TC inline 4 used in the Class 3 NPR Eco-Max cab-chassis and the Reach commercial walk-in van.
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