Quote:
Originally Posted by 98civHX
My daily commute is less than 5 miles a day. It takes a while fory car to warm up and it only reaches 1/4 of the way on the thermostat. I shift between 2k-2.5k rpm my rpm @ 60mph is 2.5k or less
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You need to replace the thermostat, preferrably with an OEM Honda unit. Make sure the system is properly bled when you refill the coolant. IF you dont when really cold weather arrives, you probably will not have any heat to warm the car. Gauge should read around half way within 1.5 miles.
A BAD THERMOSTAT WILL CAUSE OTHER PROBLEMS OVER TIME AND CONTRIBUTE TO CARBON FOULING, BOTH IN THE ENGINE ITSELF AND IN THE EGR PASSAGEWAYS.
On a 10 miles round trip in my Mirage (5 each way) I can get close to 60 mpg as long as speeds are lower. In your HX, if the commute is at lower speeds, over 40 should be fairly easy, even higher speeds would not be much lower.
The HX transmission should give you right around 2k rpm at 60mph. If not that is part of your mileage issue, especially on the highway.
Calcivic drives a HX, look at his mpg and his techniques and mods are specific to that vehicle. He has written the book on his HX.
regards
mech