08-30-2010, 04:58 AM
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#31
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Join Date: Jul 2010
Location: Balboa Island
Posts: 509
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Quote:
Originally Posted by snow&surf
Push the button next to the odometer a few times and toggle to the avg mpg display, once there hold down the button for a few seconds and it should reset. it's also explained your owner manual.
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Thanks, got my TE about 4 weeks ago drove it for 2 weeks and have been surfing in Hawaii ever since. I return on the 30th then leave the next day for Yuma Az to dove hunt. Depending on how much room I need, I may drive the TE and check the highway mileage or the Crew Max which gets 19 mph with the 5.7 SC'ed motor or my TE which has shown only 17 mpg combined city and freeway action.
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08-30-2010, 11:19 AM
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#32
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Join Date: Aug 2010
Location: Tucson, AZ
Age: 54
Posts: 37
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Quote:
Originally Posted by nikobimmer
I commute 180 miles a day (got my TE in Feb) and have been averaging 21mpg. Just passed 20,000 mile!
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WoW that is a serious commute. So how is the comfort level for you? My wife has a 325 that we normally travel in, but with the size and not horrible hwy mpg we may have to switch to the 5th gen when we get it....
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09-07-2010, 08:19 PM
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#33
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Join Date: Aug 2010
Location: Florida
Posts: 152
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Quote:
Originally Posted by MikesTE
I've been b/w 20.4 and 21.4 for the last 20 fill-ups or so. Very consistent. Most miles are at 65mph or so with about 36.9% city driving.
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I'm seeing about the same thing. Drove to Tampa and back today...220 miles total. The computer says 21.4mph. I've been checking the total mph with a hard calculation at each fill up and the computer has been right on the money. I reset it at every fill up.
This weekend, I pulled the flats boat and associated gear the river. The computer settled on 17.5 mph. I consider that pretty good for pulling 3,800 lbs. and hauling four adults (well...two adults and two high-school humanoids)plus gear.
My Titan averaged 14.5 without the boat...blended with a lot of highway miles. i was getting "thank you" letters from OPEC.
So, I'm definately a happy camper.
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10-21-2010, 03:28 PM
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#34
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Join Date: Jul 2010
Location: Charleston, SC
Posts: 718
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What about with bigger tires and roof racks?
Reviving this thread to see others' MPGs who have done tire and roof rack mods. With FT4x4, heavier and bigger 275/70/17 BFG E-rated tires on SR5 rims, and Baja rack, I am suffering far more than I had hoped. Also, I have noticed that the AC (and blower fan) consume nearly 1MPG. Getting 15-16 in town, and only 18 on HWY. Over 60 mph, it gets uglier. Also, wondering if the increase in tire size has caused my MPG readout to run lower than reality. Even when I was all stock before my mods, I still could never top 20mpg on an average basis, unless I was going around 60mph on flat roads only.
I did do a 15-mile jeep trail in steep mountain gorges recently all in 4LO and got 13MPGs somehow.
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2010 LTD 4x4, blk/sbl, nav, remote start MODS/ADDS: TE Conversion; ICON Stage 2 w/ LRUCAs; 285/70/17 DuraTracs; Baja Rack; SW Sliders, ARB CKMA12 onboard air; Fiamm horns; Tan Huskys; 30% tint; 5" mangowalk; LED lights in interior, puddle lights, license plate, engine compartment, and cargo area; small tool box under the hood; removed cargo tray stopper; reverse cam switch; 4-pin trailer light hookup relocation; K&N air filter; AVS bug deflector; 3m carbonfiber chrome coverup (except door handles); midland CB; Firestik 2' hood-mounted CB antenna.
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10-21-2010, 04:09 PM
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#35
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Senior Member
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Join Date: Jan 2010
Location: Hurricane, WV
Posts: 2,444
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Quote:
Originally Posted by Snooperstyle
Reviving this thread to see others' MPGs who have done tire and roof rack mods. With FT4x4, heavier and bigger 275/70/17 BFG E-rated tires on SR5 rims, and Baja rack, I am suffering far more than I had hoped. Also, I have noticed that the AC (and blower fan) consume nearly 1MPG. Getting 15-16 in town, and only 18 on HWY. Over 60 mph, it gets uglier. Also, wondering if the increase in tire size has caused my MPG readout to run lower than reality. Even when I was all stock before my mods, I still could never top 20mpg on an average basis, unless I was going around 60mph on flat roads only.
I did do a 15-mile jeep trail in steep mountain gorges recently all in 4LO and got 13MPGs somehow.
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Well, you will have to calculate the difference in circumference of your new tires versus your old ones... and calculating on pen and paper is your best bet versus the onboard one. Basically, you are traveling more than 1 mile for every time your car clicks off 1 mile on the odometer. You are traveling an extra 80 ft for each mile that clicks off on the odometer if you have 285/70-17 tires. So, multiply whatever your odometer reads by 1.035 when you fill up and that is the actual number of miles you traveled on that tank. Use that number for your mpg calculation.
Here is my totally stock 4Runner for the past 4000 miles.
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10-21-2010, 04:34 PM
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#36
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Join Date: Aug 2010
Location: east
Posts: 192
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Limited, city driving only, 2900 miles and average around 18.9mpg
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10-21-2010, 05:01 PM
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#37
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Join Date: Jul 2010
Location: Charleston, SC
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Quote:
Originally Posted by Quentin
Well, you will have to calculate the difference in circumference of your new tires versus your old ones... and calculating on pen and paper is your best bet versus the onboard one. Basically, you are traveling more than 1 mile for every time your car clicks off 1 mile on the odometer. You are traveling an extra 80 ft for each mile that clicks off on the odometer if you have 285/70-17 tires. So, multiply whatever your odometer reads by 1.035 when you fill up and that is the actual number of miles you traveled on that tank. Use that number for your mpg calculation.
Here is my totally stock 4Runner for the past 4000 miles.
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Q,
Nice chart! I like this. While I understand why it is, could you tell me how you got 80ft for the 285/70s and the 1.035 number? Also, mine are 275/70s, so I assume are only a tiny bit bigger than stock...probably 1/2-in taller (guessing) when inflated to 43psi. I have not done math like this since college! Sure would be nice to get a chart on here showing such calcs for various diameter tires for people to use. Actually one with actual tire diameter intervals in 1/4 inches would be sweet!
On a side note, it seems like everybody who is doing his/her own MPG calcs is getting higher values...is this indicating inaccuracy of the onboard calc?
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2010 LTD 4x4, blk/sbl, nav, remote start MODS/ADDS: TE Conversion; ICON Stage 2 w/ LRUCAs; 285/70/17 DuraTracs; Baja Rack; SW Sliders, ARB CKMA12 onboard air; Fiamm horns; Tan Huskys; 30% tint; 5" mangowalk; LED lights in interior, puddle lights, license plate, engine compartment, and cargo area; small tool box under the hood; removed cargo tray stopper; reverse cam switch; 4-pin trailer light hookup relocation; K&N air filter; AVS bug deflector; 3m carbonfiber chrome coverup (except door handles); midland CB; Firestik 2' hood-mounted CB antenna.
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10-21-2010, 05:12 PM
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#38
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Join Date: Aug 2010
Location: Florida
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Quote:
Originally Posted by Snooperstyle
Q,
Nice chart! I like this. While I understand why it is, could you tell me how you got 80ft for the 285/70s and the 1.035 number? Also, mine are 275/70s, so I assume are only a tiny bit bigger than stock...probably 1/2-in taller (guessing) when inflated to 43psi. I have not done math like this since college! Sure would be nice to get a chart on here showing such calcs for various diameter tires for people to use. Actually one with actual tire diameter intervals in 1/4 inches would be sweet!
On a side note, it seems like everybody who is doing his/her own MPG calcs is getting higher values...is this indicating inaccuracy of the onboard calc?
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I use the on board and also calculate each time. The on board computer is pretty close, if you rerset it every time you fill up. I'm getting between 19.5 (when in town) and a little over 21 (when traveling).
At highway speeds, it creeps over 22 and has hit the low 23s and then comes down in town. It's cumulative.
The worst I've ever seem was 17.1. That was pulling my boat (also with four grown people, coolers with ice, food and beverages, and a boat full of gear and gas) . I'll take that any day.
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Last edited by Fuzzylogic; 10-21-2010 at 05:14 PM.
Reason: Typos
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10-21-2010, 06:37 PM
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#39
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Join Date: Apr 2010
Location: Escondido, CA
Posts: 748
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My on board computer shows that I average between 15-16 mpg's, mind you I now have larger tires and have had a roof rack for some time. I haven't bothered actually calculating mpg's with the tire difference.
When I had stock size Firestone M/T's I was averaging the same mpg's as well.
Daily driving is pretty much stop and go both in the city and hwy. Work is 8 miles away. I also have a ScanGuageII but never bother hitting the refill button so whatever that shows is wrong as well.
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10-21-2010, 08:31 PM
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#40
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Junior Member
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Join Date: Oct 2010
Location: GA
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Not sure if I got a dud or my car isn't broken in enough yet. I've got a 2011 sr5 4wd and the highest my meter has gotten is 16.8 mpg. Ive done mixed driving city and highway. Always in 2wd and haven't carried much at all in the car. I haven't seen anyone with numbers really lower than mine. ive got about 500 miles so far.
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10-21-2010, 09:15 PM
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#41
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Join Date: Jan 2010
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Quote:
Originally Posted by Snooperstyle
Q,
Nice chart! I like this. While I understand why it is, could you tell me how you got 80ft for the 285/70s and the 1.035 number? Also, mine are 275/70s, so I assume are only a tiny bit bigger than stock...probably 1/2-in taller (guessing) when inflated to 43psi. I have not done math like this since college! Sure would be nice to get a chart on here showing such calcs for various diameter tires for people to use. Actually one with actual tire diameter intervals in 1/4 inches would be sweet!
On a side note, it seems like everybody who is doing his/her own MPG calcs is getting higher values...is this indicating inaccuracy of the onboard calc?
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So, a 275/70-17 tire means the sidewall height is 275mm * 0.70 = 192.5mm. The rim height is 17" (431.8mm). Total wheel and tire diameter is 816.8mm (32.16"). Wheel circumference is 100.97". OK, now run the same numbers with the stock 265/70-17. You'll see a small difference in total circumference. Divide that difference by the wheel circumference of the OEM measurements and that gives you your mileage percent difference.
There are a couple web calculators online that will tell you how your speedometer and rolling circumference changes with stock and new tire sizes.
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10-21-2010, 09:24 PM
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#42
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Join Date: Dec 2009
Location: Gig Harbor, WA
Age: 51
Posts: 207
Real Name: Paul
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Ive been consistant with 17 in/around city and 22 on long drives. Drove 500 miles today through NW Nevada, NE Cali and southern Oregon through hills and all and stayed between 21-22. Just hit 14k miles.
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10-21-2010, 11:25 PM
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#43
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Quote:
Originally Posted by Quentin
So, a 275/70-17 tire means the sidewall height is 275mm * 0.70 = 192.5mm. The rim height is 17" (431.8mm). Total wheel and tire diameter is 816.8mm (32.16"). Wheel circumference is 100.97". OK, now run the same numbers with the stock 265/70-17. You'll see a small difference in total circumference. Divide that difference by the wheel circumference of the OEM measurements and that gives you your mileage percent difference.
There are a couple web calculators online that will tell you how your speedometer and rolling circumference changes with stock and new tire sizes.
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Thanks for that. Here is one such link I just found. Tire Size Calculator
Looks like for every 100,000 miles, stock 265/70s are turning about 1075 more miles than 275/70s...a very minimal difference. I think that would equate to a difference in MPG of about 3/10ths of a MPG...
Based on this, and the fact that other people with heavy E-rated tires are still getting good MPGs, looks like the Baja Rack is the bigger culprit!
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2010 LTD 4x4, blk/sbl, nav, remote start MODS/ADDS: TE Conversion; ICON Stage 2 w/ LRUCAs; 285/70/17 DuraTracs; Baja Rack; SW Sliders, ARB CKMA12 onboard air; Fiamm horns; Tan Huskys; 30% tint; 5" mangowalk; LED lights in interior, puddle lights, license plate, engine compartment, and cargo area; small tool box under the hood; removed cargo tray stopper; reverse cam switch; 4-pin trailer light hookup relocation; K&N air filter; AVS bug deflector; 3m carbonfiber chrome coverup (except door handles); midland CB; Firestik 2' hood-mounted CB antenna.
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10-22-2010, 06:31 AM
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#44
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Quote:
Originally Posted by Snooperstyle
Thanks for that. Here is one such link I just found. Tire Size Calculator
Looks like for every 100,000 miles, stock 265/70s are turning about 1075 more miles than 275/70s...a very minimal difference. I think that would equate to a difference in MPG of about 3/10ths of a MPG...
Based on this, and the fact that other people with heavy E-rated tires are still getting good MPGs, looks like the Baja Rack is the bigger culprit!
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While adding substantial frontal area and definitely increasing the drag coefficient, I'd say you are right about the baja rack. This is assuming that you don't do much stop and go. If all your trips are basically getting those big rollers moving and maintaining that speed until you reach your destination, you aren't suffering too badly from the add'l rotational inertia of the heavy tires. If you do a lot of stop and go, even at highway speeds, you are going to notice having to get those heavy guys moving each time you leave a stoplight and get up to speed.
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10-22-2010, 10:03 AM
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#45
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I noticed I took a 1 mpg hit when I went from the stock Bridgestone HT's to Michelin LTX AT2's.
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