EPA Highway MPG Criteria Test: 26.5 mpg

you guys smokin weed )

 

Dude...
Did you do... this?
or...
this?

Put the weights down.

You have to follow a specific program for a specific time at specific loads and speeds for all categories, then put them together. The whole EPA test is like 70 miles.
You went out and drove a few miles and used the inaccurate instant mpg meter. You did no test and you sure didn't replicate the EPA test. Your results are just...

 

It's definitely doable

 

Yup! Lmao

 

I do

 

I have found that constant reading and believing that little MPG info gauge will only lead one to heartache, and needless mental anguish. I have a 200 lb Leer cap on my otherwise very stock 2020 OR LB, and I have achieved at best on a straight highway run from NC to FL on I-95, 21.9 at best: My truck does shift into 6th gear without issues. I have never seen that figure ever again. I now average about 17 - 18.5 on 70% highway, 30% city combined driving in the mountains in Western N.C. area where I live (using non Ethanol gas, 90% octane rated). I will probably only go down from there once I start to add "needful things" on the truck. My truck only has 6300 miles on it to date.

 

LOL! Yeah, it's been 90% of the time here below 'freezing' ... for the last couple months.
Funny thing is .. And not because I really needed too ... I checked the tire pressures ... And all were at 25 psi.
I thought that (As dealers will do) under-inflate the tires a bit, because they want you to have a nice smooth 'cushy' ride.
I filled my tires up to 30 psi (With a very accurate $40.00 gauge) thinking 'OK, there we go..' ... and still next to no difference in the mpg's.
It will be very interesting to see if the mpg's go up when it starts getting warmer outside.
Even though Toyota said '21 mpg highway' on the 2.7L .... And I was getting 2-3 mpg more when it was summer out ...
I can't really complain, but I'm very interested to see if the mpg's go back UP when the weather goes back up.

 

I already wrote very clearly what I did. Read my original post if you're still having trouble. And the EPA highway test is not 70 miles. Using a dyno is not EPA criteria for testing highway MPG. The EPA clearly states that the dyno is a limitation on their part because it's not practical for them to test 1000s of vehicles in real world conditions like I did.

The highway test is for measuring MPG on guess what? The highway. Which I did and is more practical to real world results.

As for measurement I used "Average Fuel Economy" with can be reset on the fly. I doubt you even know about this feature. And it simply measures miles and gas used which is accurate.

The CRITERIA from the EPA for highway MPG is straight forward:

- 10 miles
- 48mph average speed
- 60mph not exceeded
- Warmed engine
- No AC on

That *is* the criteria. How many MPG my truck gets on a dyno is meaningless to me. This test is about the real highway. Reality.

 

Lol you still don't get it. I'm done.

 

I get that you're stuck on the dyno. I am interested in the actual highway.

 

I've noticed on my own rig (2020 2.7L while in 2WD) a somewhat noticeable difference with a somewhat minor MPH can make with MPG.
Toyota says I should get 21 MPG highway. (I generally do a bit better than that)
Now, if I'm driving local roads (2 lane roads) where the speed limits are generally 50 mph ... Since it's winter, I'm taking it easy (And never in a hurry anyway, plus also not wanting to hit a deer..) ... So I usually use CC and drive 45 MPH. I get 23 MPG, and it's pretty accurate as for me just going to the grocery/hardware store is a 50 mile round trip.
If I go into Spokane, which is a 100 mile round trip .. On the state highway that's 60 MPH (But everyone does 65 +-) I'm getting about 18 mpg. Again with CC and letting the computer do the power/mpg math.
I was just a bit surprised that a 15-20 MPH difference, made a 5 MPG difference.

 

Look, how you did it is fine... for you and you only. It is one tiny data point on one day on one stretch of road for a short length of time.
The EPA tests many different vehicles the same way with the same process. Sure, it's on the dyno because that's the only way it can be repeatable. Otherwise, they would be like you... run a test one day at one temp with the wind at 12 mph ad get a result. Tomorrow they run the same test but will now have different variables and get a... different result.
Bottom line, if it's not repeatable (all facets of the test) then the results are shit data. I have been testing off highway mobile equipment for years. Some of it we do on test stands, some we do on a specific test track and some we do "in the wild." All of those will give you different results, for example testing fuel efficiency. The test stand will be results we publish because that is always repeatable. The test track will give you a different result but may be more meaningful to a company looking to buy 200 machines in the southwest. The test track would be set up to mimic their working conditions. In the wild testing is wildly variable, and in essence what you did. We only use that to determine gross limits, like is the machine operating within operating parameters. I can take a machine through the woods for one mile and get one result. One hour later I can take that same machine through the same mile and get different results because maybe the ground got wetter... or dryer... or ambient temps changed, maybe the humidity changed, maybe the track slipped a bit more, maybe I ran over that tree differently... my point is, your results are good for you. To publish and be taken seriously, they have to be 100% repeatable.

 

You’re getting way too pedant. I gave full disclosure as to how I ran my truck.

I used EPA criteria/parameters for running the trunk on a real highway and used the measuring instruments in my truck designed by the engineers of Toyota.

“Your Mileage May Vary”

 

Exactly.
Full camping set up, RRT, 300lb in the back. Getting 20-22 average.(calculated during fill up)
I drive like I'm retired and have nowhere to be

 

I just ran a similar test. I have a new 2021 trd dc or, all stock. I did two trips, one way 55 miles. A couple of stop lights and the same road back and forth. I filled up at the end of eack. I read that the best mpg's are around 55 to 60. Tires are at 35psi and 35 degrees out. Only my 221lbs and my 115lb daughter in the truck. No other weight. I accelerated slowely, and coasted to any red light. I averaged 24.1 on the dash, and 23.9 calculated. Same trip both ways. No real wind and pretty flat. The problem is I normally don't drive that slow... But, I will say I was more relaxed when I arrived, but it took a few extra minutes!

 

I get great mileage on the highway

On the interstates down here though not so much. 70 is an option 80 is pretty normal

 

Ha.... come to ontario. Add another dollar a gallon for premium.

 

I buy it. My "MPG Loop" is an ~8-mile jaunt on perfectly flat terrain on which I drive 45-50 MPH with some 25 MPH curves and one stop sign. My Trip average is routinely 26-27 MPG on both out and back runs in the summer. Stock Tacomas can do decent MPG when the throttle is babied. Will be even better when I get my Defenders next summer.

 

Are you stock? I’m fine with the low mpg but I’m usually beating the mpg that manufactures provide by 2 or so mpg at 75. This is my first rig that no matter how slow I drive I can’t match the hwy rating. At 55 mph I’m lucky to get 19 mpg on completely straight back roads. Roads where I drive my M4 at the same speed I get 35MPG and that’s with a tune making almost 600 horsepower.

 

Daaamn, really? I thought BC had the highest gas prices in Canada.