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Hello guys, I would like give everyone an update. I had a road trip this weekend so I took this opportunity to test my 2009 accord's highway fuel consumption.
I drove a total of 260km back and forth, of which about 200km are regular highway that I maintained 90-105 km/h; 60 of them are city/suburb driving ranging from 50-80km/h.
I have 3 passengers and some snowboard equipment. I guessed about 580lb of human and 80lb of cargo.
I ran AC for about half hour and had fan on low the whole time. Tire pressure are 40psi and I didn't use much cruise control.
The result is 7.8L/100km or 30mpg, which is exactly what the EPA rating is.
So... I not sure how EPA highway rating is obtained, but I think that it can only get better if I drove pure highway and only have 1 passenger?
All in all, I now incline to think that there is nothing wrong with the car.
One unrelated observation though, I cleaned my rims about 2 months ago, and now my rear wheels are coated with break dust, but I can still see metal on the front wheels.
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