I’m about to go on a 800 mile road trip. My 1st with the HCH.

I’ve used the techniques on this site and gone from the low 40's to the mid to high 40's with no other changes.

The only FE mod would be 0W20 Mobil 1 synthetic, and 45psi in the Dunlop’s.

I checked my tire pressure.

Any other tips? I do know going over 60-65mph kills the FE. But I dont want to go 45mph on the hwy for 800 miles. I’m thinking 55-65.

Also to cruise or not to cruise. I can get a lot more lean burn from no cruise, but don’t know if I can focus on FE for that long. I’m thinking of setting the cruise on 55-60 and forget it.

I love this car, and driven properly it will reward you with some amazing Fuel efficiency.

2005 HCH CVT
17" wheels, HID Lights. getting in the high 40's mpg.
2004 Mustang Mystic Cobra
650hp + Heavy foot = 10.4mpg
2003 Harley F-150
6000lb + Supercharger = 14.7mpg
2002 Trans Am WS6
1996 Lincoln Mark VIII
800hp + 4400lbs = bad FE