Chase drivers receive the same base rate fee as other drivers on the trip, plus $0.32 per mile for fuel and depreciation when using their personal vehicle. This is already included in the flat fee of each personal chase trip offer.
As such you should not claim any fuel expenses as the $0.32 per mile rate covers this cost. This is based on estimates from Google maps taking the most direct route to that destination. If a driver decides to take a different route due to construction, accidents, toll roads, or breaks (fueling, meal breaks, etc.), that is solely at the discretion of the driver and normally those routes will not be adjusted for a few miles off route.