2011 Toyota Trucks Will Meet New Towing Standards
Words and Photos by Mark Williams for PickupTrucks.com
For truck enthusiasts who watch tow ratings like their favorite football teams’ scores, there’s a change coming.
It’s no secret that each manufacturer has its own way of testing the maximum towing capacity of its pickup trucks; the gamesmanship over the years is well-documented. To level the playing field, the Society of Automotive Engineers decided a few years ago to form a task force to determine which procedures and regulations should be instituted to make sure each automaker gives the consumer the most accurate — and comparable — tow rating.
The idea is to make sure each manufacturer uses the same testing procedures so the consumer can get the best and most accurate information. To date, there is only a proposed standard, called J2807, that is still in formal deliberations; however, with all the manufacturers currently involved, there is something of a “gentlemen’s agreement” that the 2013 model year will be the target date to have these processes and procedures in place across the board.
But some are adopting these guidelines early. That’s why Toyota invited us out for a day of towing (at maximum capacities) to let us know that all of its 2011 models already comply with J2807. Of note, many of the new tow ratings on identically equipped vehicles from the previous year have gone down, in some cases considerably.
This is largely because the new SAE procedures are quite thorough and exhausting, and they include a rather challenging handling requirement that many automakers had not considered. The end result for truck buyers is that from one year to the next, they might see some changes in the maximum tow ratings of their favorite pickups (usually down, but possibly in some cases up). And it may not mean the vehicle has changed in any way, just that it is being tested more thoroughly than before.
An important issue to keep in mind, especially in the next several years, is that an SAE-rated vehicle cannot necessarily be compared to one that is not SAE rated because the two ratings are likely to be calculated with two different methods. This is similar to the situation we had a few years ago when the EPA changed its testing procedures to determine fuel economy, or when the EPA changed how engine horsepower was calculated.
Any change in methodology will make direct comparisons difficult, if not impossible, but the tow rating issue is complicated by the fact that the full procedural changeover for every manufacturer may not be complete for one or two model years. In the meantime, pay special attention as to whether the pickup truck you are interested in buying is SAE-rated or not.
PickupTrucks.com readers should be familiar with the wars over maximum towing capacity that have heated up over the past 10 years in the half-ton and heavy-duty arenas. Ford, GM and Ram have magically upped their rating numbers at different points with seemingly little or no changes to a specific frame or suspension. Also, they’ve all been guilty of using their maximum towing numbers — which typically relate to a very specific low-volume vehicle — to gain some type of advertising advantage when every knowledgeable truck enthusiast knew the numbers applied only to a specific model and not across the lineup.
That is partly why SAE finally stepped in to try to standardize the testing and rating procedures, making sure a truck-to-truck comparison can be done. Every cab and powertrain combination, including some of the more popular option packages, will need to be tested for ratings. The ultimate benefit is for the consumer, as automakers will be forced to play (or tow) on an equal basis, with more transparency.
In Toyota’s case, the tow rating of most of the vehicles tested went down a proportional amount across the lineup — for Tundra, about 400 pounds. In other cases, especially with midsize and large SUVs, the drop in towing capacity was closer to 100 or 200 pounds.
Be aware of the coming changes and know that some manufacturers may try to embellish their ratings in the next year or two before they start testing with the new standards. Here is a brief, but not thorough or exhaustive, description of some of the J2807 testing procedures:
1) A vehicle must be able to pull a trailer of a designated weight (and shape) up a Davis Dam simulation at a minimum speed of 40 mph in ambient temperatures of 101 degrees with the maximum air conditioning turned on at the full fan setting. The run must be done several times, and there must be and no overheating, no puking and no trouble codes.
2) All trailers must adhere to the same specifications as set forth by the J2807 procedures. They must be boxed with a flat face of a specified height and width.
3) On a level road, the vehicle and trailer combination must be able to accelerate from zero to 30 mph in less than 12 seconds, zero to 60 mph in 30 seconds, and run 40-60 mph in less than 18 seconds.
4) A vehicle and trailer must be able to launch a minimum distance of 16 feet from a stop up a 12-percent grade five times in five minutes, measured both in Drive and Reverse.
5) A vehicle and trailer combination must be able to stay in control and in its original lane when panic stopping from 80 mph. In those cases where the combination cannot attain that speed, the vehicle’s upper limit will suffice.
6) The vehicle and trailer combination must be able to perform the necessary low-speed turning circle test with the minimum of understeer or trailer push.
7) For trailers weighing less than 3,000 pounds, the vehicle must be able to stop the combination (without trailer brakes) in 35 feet or less. If the trailer is more than 3,000 pounds, the distance is 80 feet.
8) The parking brake on the towing vehicle must be able to hold the trailer (without trailer brakes) pointed up and down a 12-percent grade.