sql-server - SQL Server to SQLite query translation error

Question

To calculate the MPG values from a Fuel table I'm using this SQL Server query which works great:

SELECT 
    CASE 
       WHEN Fuel.Quantity = 0 THEN 0 
       ELSE (Fuel.Odometer - ISNULL((SELECT TOP 1 Dupe.Odometer FROM Fuel AS Dupe WHERE Dupe.MainID = Fuel.MainID AND Dupe.FuelingDateTime < Fuel.FuelingDateTime ORDER BY Dupe.FuelingDateTime DESC, Dupe.FuelID),0)) / Fuel.Quantity 
    END AS MPG 
FROM Fuel 
WHERE MainID = 1

When I translate it to SQLite query I get an error:

Near "1" : syntax error

The SQLite query is:

SELECT CASE 
WHEN Fuel.Quantity = 0 THEN 0 
ELSE 
(Fuel.Odometer - IFNULL((Select TOP 1 Dupe.Odometer FROM Fuel As Dupe WHERE Dupe.MainID = Fuel.MainID AND Dupe.FuelingDateTime < Fuel.FuelingDateTime ORDER BY Dupe.FuelingDateTime DESC, Dupe.FuelID),0)) / Fuel.Quantity 
END As MPG 
FROM Fuel 
WHERE MainID = 1

Is it the temporary table ('Dupe')? How do I write the query in SQLite?