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Toyota 4Runner Real World MPG

84 messages,  Last post on Dec 06, 2009 at 4:45 PM

You are in the Toyota 4Runner Forum. Your Hosts are steve_ & tidester

What is this discussion about? Toyota 4Runner, Fuel Efficiency (MPG), SUV


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#6 of 84
Re: 2002 SR5 4WD auto [chiefjojo] by jaesee75edmund
Jul 23, 2006 (7:00 pm)
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Replying to: chiefjojo (Jul 22, 2006 8:57 pm)

oops! I guess the 2002 didn't have an 8, and the 4 cylinder didn't come in 4wd. so, how do you get 18 mpg?
#7 of 84
Re: 2002 SR5 4WD auto [jaesee75edmund] by chiefjojo
Jul 24, 2006 (10:20 am)
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Replying to: jaesee75edmund (Jul 23, 2006 7:00 pm)

Well, the 2002 is a 3.4 V6, and the 3rd gen is smaller and lighter than the newer ones--i think around 4000 lbs. Also, since gas prices have been so high, I've taken it easier by driving close to the speed limit. If you keep it closer to 65-70 instead of 80 on the hwy, it can make a HUGE difference in mpg numbers.
 
Drag losses due to wind resistance increase exponentially with speed... double your speed, and air becomes 4 times more resistant.
#8 of 84
Re: 2002 SR5 4WD auto [chiefjojo] by tidester HOST
Jul 24, 2006 (11:03 am)
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Replying to: chiefjojo (Jul 24, 2006 10:20 am)

Drag losses due to wind resistance increase exponentially with speed ...
 
Actually, the drag force varies with the square of the speed so it is not exponential.
 
tidester, host
#9 of 84
2003 V8 4WD Limited by nedzel
Jul 24, 2006 (1:12 pm)
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I get around 17 mpg in mixed suburban driving. On the highway, with the cruise control set at 70 I get around 19 mpg.
#10 of 84
2000 V-6 4WD manual shift by nippononly
Jul 25, 2006 (7:19 pm)
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gets me 20-20.5 mpg as a running average, in a little bit of suburban and mostly vacation driving. I have found that A/C use makes very little difference in this truck.
 
Oh yeah, and the V-6 4WD manual has a curb weight of 3885 pounds. It is more than 10% lighter than the new model from '03 on, which is good for gas mileage.
 
Like chiefjojo, 23 mpg is about the best I can hope for in an all-highway trip. However, it is very consistent under those circumstances, so it never drops much below 23 either.
#11 of 84
Re: 2002 SR5 4WD auto [chiefjojo] by chiefjojo
Aug 29, 2006 (10:39 am)
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Replying to: chiefjojo (Jul 24, 2006 10:20 am)

Just measured 23.4mpg last night (on my 2002 4WD 4R auto) after driving back from the beach in NC. That's at about 60-70 mph on the highway and ~95% highway miles.
#12 of 84
just did a trip to the redwoods by nippononly
Aug 29, 2006 (2:56 pm)
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approximately 600 miles round trip, with camping for 3 nights in the middle, so it was not all highway because there were a couple of days of short trips puttering around up there.
 
Anyway, averaged only 22 mpg overall, not my best work!
 
(2000 V-6 4WD stick shift)
#13 of 84
Re: 2002 SR5 4WD auto [tidester] by fowvay1
Aug 30, 2006 (1:26 pm)
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Replying to: tidester (Jul 24, 2006 11:03 am)

Ummmmm? How is this not exponential? The exponent is 2!
#14 of 84
Re: 2002 SR5 4WD auto [fowvay1] by tidester HOST
Aug 30, 2006 (1:28 pm)
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Replying to: fowvay1 (Aug 30, 2006 1:26 pm)

x2 is quadratic. 2x is exponential.
 
tidester, host
#15 of 84
Re: 2002 SR5 4WD auto [tidester] by fowvay1
Aug 30, 2006 (1:52 pm)
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Replying to: tidester (Aug 30, 2006 1:28 pm)

I guess I misunderstood the original drag equation. Btw, exponential is e to the power of x, not 2. (e=2.71828183)
 
But, back to the 4runners - I expected to see greater differences b/w newer 6 and 8 cyl. engines, esp. with full time four wheel drive...
 
This is helpful - I'm thinking of getting one and will use it for occasional boat towing. Need to do much more research. Thx.

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