<Tr> <Td_colspan="5"> As Richard heads to Houston to check out Gas Monkey's top fuel NHRA dragster do some racing, the Monkeys need to do some racing of their own to finish a custom lowrider paint job on the' 78 Cutlass in time for the car's debut . </Td> </Tr> <Tr> <Th> 85 </Th> <Td> </Td> <Td> "Big Red Caddy, Part 1" </Td> <Td> September 21, 2015 (2015 - 09 - 21) </Td> <Td> 1.571 </Td> </Tr> <Tr> <Td_colspan="5"> Richard and Aaron decide bigger is better, giving a red' 67 Cadillac convertible the luxury treatment in a risky bid to attract a higher caliber of buyers . </Td> </Tr> <Tr> <Th> 86 </Th> <Td> </Td> <Td> "Big Red Caddy, Part 2" </Td> <Td> September 28, 2015 (2015 - 09 - 28) </Td> <Td> 1.500 </Td> </Tr>

When was the last time gas was 1.50