This is the file where all custom vehicles behaviour and config are stored
Vehicle example
ufo:enabled:truepermission:ufomodel_id:24name:'&fUfo'specific_properties:sit_height:1# seat position (height)step_height:0.1# autojump heightsize:#hitbox size (when driving)x:2y:2.3#heightz:1speed:drive:1#drive speedjump:0.5#jump speedfly:0.7#fly speedfuel:start:150#fuel when you obtain item (crafting)max:300#max fuel vehicle can holditems:#items that can be used to add fuel to vehicleCOAL:1#material/custom item : amount of fuel to addCHARCOAL:1#material/custom item : amount of fuel to addCOAL_BLOCK:9#material/custom item : amount of fuel to add
Infinite fuel vehicle example
As you can see, if you don't specify any fuel, vehicle will have infinite fuel.