Fuel Economy (MPG)

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Notes for 300ZX:

EPA 18 city, 24 highway

Tank 5: track day
Tank 25: switched to synth oil
Tank 46: 60k service
Tank 50: new high-flow mufflers
Tanks 53-59: long road trip with track day in the middle
Tank 63-91: failing fuel injectors!
Tank 75-77: road trip, speeding
Tank 81-83: road trip, at 75 mph
Tank 89: swap air filters for cone-style air filter
Tank 91: new 555cc/min fuel injectors+JWT ECU
Tanks 92-99: long road trip, speeding

Notes for WRX:

Car is entirely stock, purchased from the local Subaru dealer with 5 miles on the odometer. Several road trips are mixed into the mpg data.

Notes for Cherokee:

Tank 7: Full tune up
Tank 30: swap to K&N air filter (not cone-style)