Please see ad in private seller on forum. 99 Trooper with a 4-cylinder 4jg2 diesel engine and auto tran plus original running gasoline engine. Engine can run on pure vegetable oil and diesel/veg oil mixture for free if you can find the vegetable oil. Engine was tested successfully with vegetable oil and mixture on dyno. Click link to see ad https://isuzuforums.com/forum/private-sale-trade-classifieds-36/isuzu-trooper-1999-limited-edition-4jg2-diesel-engine-included-39740/ Thanks