Unless you have an older carbureted vehicle, engine braking should use no fuel: https://en.wikipedia.org/wiki/Engine_braking#Limitations https://en.wikipedia.o

Unless you have an older carbureted vehicle, engine braking should use no fuel: https://en.wikipedia.org/wiki/Engine_braking#Limitations https://en.wikipedia.org/wiki/Engine_braking#Limitations Just do a decent job matching revs on the downshifts so you don't trade brake dust for clutch dust :)