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2005 Acura RL vs 2007 Honda Accord V6 MPG, Test Drive

In this corner, we have a 2005 Acura RL…at a curb weight of 3,984 lbs, this ALL-Wheel-Drive unit is powered by a 300 horsepower,  3.5 Liter V6. Currently, the Acura RL is the top-of-the-line, most luxurious flagship vehicle of American Honda’s automobile production.

And in the other corner, with a curb weight of 3,344 lbs and powered by a 244 horsepower, 3.0 liter V6 Honda engine; we have a 2007 Honda Accord Sedan SE with an automatic transmission…

A Brief History about our MPG tests…As many of our  blog readers already know, Accurate Automotive opened it’s service doors on May 25, 1997 as an independent, non-franchised business that exclusively specializes in the service and repair of  Honda and Acura automobiles. In June of 2004, with the requests and encouragement of Accurate’s long-time and most loyal customers, who are also considered close and personal friends, Accurate opened it’s Honda and Acura Used Car department with the goal of becoming North America’s most recognized source for pre-owned Honda and Acura automobiles, trucks, vans and SUVs; as an independent, non-franchised dealer.

Nearly every week, Accurate Auto Sales makes a 680 mile trip to Central Florida, where they  purchase the majority of their Honda and Acura used car inventory directly from American Honda Lease Trust, via dealer auction. Because of Accurate’s appetite for information involving Honda and Acura vehicles;  in the early part of 2008, Accurate Auto Sales began driving 2 vehicles on the return trip from Central Florida,  as a real-world test drive for MPG (Miles per Gallon). Below is the most recent journal entry from September 17, 2008, written by our inventory purchaser, Ed Brian.

Ed  writes, our journey started at 2:00pm Eastern Time. We filled up both vehicle fuel tanks in Ocoee, Fl., which is just north of Orlando. Because of the very recent but temporary interruption of fuel supply in the southeast, due to Hurricane Ike in the Gulf, fuel prices were about 70 cents per gallon higher than just a week earlier. We also had some concerns that along the way, we could possibly find ourselves in some areas that were dry of gas and waiting for a fuel delivery, but this did not become an issue. We filled at the same stations where we normally stop.

Our first stop was simply a fuel tank top-off while stretching our legs and was  I-75 North at Exit 5 in Georgia. My father-in-law was in the 2005 Acura RL and I was in the 2007 Honda Accord V6. We had traveled 193.1 miles, our average speed had been approx. 80 miles-per-hour, the outside temperature was around 92 degrees Fahrenheit. The Acura RL took 8.27 gallons of 93 octane, indicating 23.35 miles per gallon; and the 2007 Honda Accord had consumed 7.65 gallons of 87 octane, indicating an average of 25.2 MPG. The 93 octane was $4.40 per gallon and the 87 octane was $4.16….Thanks to Ike.

The next fuel stop was on I-75 North at Exit 345. Since the last fuel tank top-off, we had driven 334.2 miles at an average speed of 75 miles per hour. Because the sun had gone down during this part of the trip, the outside temperature had progressively dropped to around 70 degrees and the air had become damp. Normally, this helps fuel efficiency and it did. The 2007 Honda Accord had consumed 11.92 gallons of 87 octane gasoline, which indicated an average of 28.4 MPG. The 2005 Acura RL had consumed 12.98 gallons of 93 octane, indicating an average of 25.75 miles per gallon.

When we arrived at the dealership, we had driven the final 152 miles at an average speed of around 75 MPH. The 2007 Honda Accord was filled and it was determined that it had consumed 5.31 gallons, indicating a final average fuel consumption of 28.7 miles per gallon (MPG). The Acura RL needed 5.26 gallons, which indicated a fuel consumption rate of 28.9 miles-per-gallon of 97 octane.

In closing, we were intrigued by how consistent the fuel efficiency was between both vehicles. While the Acura RL did require 93 octane fuel; even 500 lbs heavier and a 60 horsepower / 500cc  bigger engine, it gave back in the form of consistent and similar fuel mileage when compared to the Honda Accord V6.

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