Acura 2011 RL Owner's Manual page 444

Towing a Trailer
To achieve a proper tongue load,
start by loading 60% of the load
toward the front of the trailer and
40% toward the rear, then re-adjust
the load as needed.
Gross Vehicle Weight Rating
(GVWR):
The maximum allowable weight of
the vehicle, all occupants, all
accessories, all cargo, and the
tongue load is:
U.S. models
5,050 lbs (2,290 kg)
Canadian models
2,290 kg
438
Gross Axle Weight Rating
(GAWR):
The maximum allowable weight at
the vehicle axles is:
U.S. models
2,690 lbs (1,220 kg)
on the front axle
2,400 lbs (1,089 kg)
on the rear axle
Canadian models
1,225 kg
on the front axle
1,085 kg
on the rear axle
Checking Loads
The best way to confirm that all
loads are within limits is to check
them at a public scale. For public
scales in your area, check your local
phone book, or contact your trailer
dealer or rental agency for
assistance.
If you cannot get to a public scale,
you can estimate the total trailer
weight by adding the weight of your
trailer (as quoted by the
manufacturer) with everything in or
on the trailer.
If you normally pull the same load
each time you tow a trailer, you can
use a suitable scale or a special
tongue load gauge to check the
tongue load the first time you set up
a towing combination (a fully loaded
vehicle and trailer), then recheck the
tongue load whenever the conditions
change.