Gas Mileage In My 3rd Gen
10-01-2008, 05:08 AM
#21
I'm going to start the church of "Holy Combustion". There we will make mods to our vehicles that can't possible make one bit of a difference, but through the power of the prayer and deep belief the mods will increase MPG. Cleaning and polishing of things will be the center of most religious services. We will also make sacrifices to the Gods of Inefficiency by taking out parts of the intake duct. The church will be open to all, but as part of entry you will have to follow initiation rules, which will involves replacing your air filter to a wet oily napkin. If you pass this test without throwing a CEL, you will become Specialist of Air Turbuluence 2nd class. Later you can progress through the ranks to Major General of Fuel Line Magnets.
10-01-2008, 06:04 AM
#22
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His truck is 2wd so let's not compare it to 4wd MPGs sicne those would be a fair amount of differnece considering 4wd adds a fair amount of extra weight to the equation.
I had an AWD Eclipse that got 21-22mpg city vs my G/F's FWD Eclipse and she was getting 26-27 minus the extra driveline parts so it's a believable number on the 4Runner.
I had an AWD Eclipse that got 21-22mpg city vs my G/F's FWD Eclipse and she was getting 26-27 minus the extra driveline parts so it's a believable number on the 4Runner.
10-01-2008, 06:32 AM
#23
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hey, all i was trying to do was thank 'Yota tech' for helping me achieve something; not get slammed with the negativity. but whatnot, you all have your opinions.
but i did end up driving the rest of the tank all freeway going back to clackamas and then back down to corvallis .... i ended up getting 373 miles on the full tank (well i filled up with 15.32 gallons); so that = 24.3472 mpg.
again ... thank you Yotatech
but i did end up driving the rest of the tank all freeway going back to clackamas and then back down to corvallis .... i ended up getting 373 miles on the full tank (well i filled up with 15.32 gallons); so that = 24.3472 mpg.
again ... thank you Yotatech
10-01-2008, 07:29 AM
#25
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His truck is 2wd so let's not compare it to 4wd MPGs sicne those would be a fair amount of differnece considering 4wd adds a fair amount of extra weight to the equation.
I had an AWD Eclipse that got 21-22mpg city vs my G/F's FWD Eclipse and she was getting 26-27 minus the extra driveline parts so it's a believable number on the 4Runner.
I had an AWD Eclipse that got 21-22mpg city vs my G/F's FWD Eclipse and she was getting 26-27 minus the extra driveline parts so it's a believable number on the 4Runner.
On the weight issue, the 2WD does weigh less, by about 300lbs. But to say that the difference of 300 lbs would make a 7MPG difference is ridiculous.
To O.State4runner - Please grow some thicker skin. It's just the internet.
Also, I will call out anyone that posts questionable data. Yours was very inaccurate. Not only the inital MPG figure, but the 24MPG figure as well. Run several tanks through it and post up what you get.
Last edited by cackalak han; 10-01-2008 at 07:34 AM.
10-01-2008, 07:53 AM
#26
bulls**T
you would have to draft a big rig the entire time to get that
try again. your claims are not possible on the 4runner unless you tailgate someone
I use computers to work out the real injector cycles and horsepower and miles driven and
all the -factual data in the ecu- and know for certain your claim is untrue on any gen 4runner
unless...you draft by following someones bumper --all the time--
you would have to draft a big rig the entire time to get that
try again. your claims are not possible on the 4runner unless you tailgate someone
I use computers to work out the real injector cycles and horsepower and miles driven and
all the -factual data in the ecu- and know for certain your claim is untrue on any gen 4runner
unless...you draft by following someones bumper --all the time--
Last edited by BigBallsMcFalls; 10-01-2008 at 07:56 AM.
10-01-2008, 07:58 AM
#27
this is accurate. bikes on roof ? ummm, you prob had some tailwind there....
22.5 is my usual best when I try hard no tailwind nothing on roof
tailwind I can sneak into 23
Last edited by BigBallsMcFalls; 10-01-2008 at 07:59 AM.
10-01-2008, 08:44 AM
#28
Uhh what equation? Have you heard of Newton's 1st law? Anything that remains in motion will remain in motion unless acted upon. Guess what? Air drag is the force that by far acts the most upon any vehicle. If the air drag is the same, a 2500lb vehicle will take virtually the same amount of energy to maintain the same speed as a 5000lb vehicle.
The education system these days is in the
The education system these days is in the
10-01-2008, 08:56 AM
#30
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Uhh what equation? Have you heard of Newton's 1st law? Anything that remains in motion will remain in motion unless acted upon. Guess what? Air drag is the force that by far acts the most upon any vehicle. If the air drag is the same, a 2500lb vehicle will take virtually the same amount of energy to maintain the same speed as a 5000lb vehicle.
The education system these days is in the
The education system these days is in the
10-01-2008, 09:07 AM
#32
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Uhh what equation? Have you heard of Newton's 1st law? Anything that remains in motion will remain in motion unless acted upon. Guess what? Air drag is the force that by far acts the most upon any vehicle. If the air drag is the same, a 2500lb vehicle will take virtually the same amount of energy to maintain the same speed as a 5000lb vehicle.
The education system these days is in the
The education system these days is in the
Right... because "mass" and "downward force exerted due to gravity" have nothing in common... and downward force due to gravity in a truck has no effect on friction drag in bearings, and extra work (i.e. gas) required to drive uphill...
Maybe if I put a Toyota Yaris engine in my 4Runner, I will get 45MPG, then?
Last edited by GSGALLANT; 10-01-2008 at 09:09 AM.
10-01-2008, 09:08 AM
#33
It's a matter of scale.
Let me put it into perspective. You as a human, if in decent shape, can exert about 200 watts of power while pushing a stalled vehicle. The 4Runner takes more than 50,000 watts to maintain 65mph.
Do you understand now that it might feel heavier to you, but to en engine the difference is negligible?
10-01-2008, 09:14 AM
#34
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Just what we need! Yotatecher disproving Newton's laws!
It's a matter of scale.
Let me put it into perspective. You as a human, if in decent shape, can exert about 200 watts of power while pushing a stalled vehicle. The 4Runner takes more than 50,000 watts to maintain 65mph.
Do you understand now that it might feel heavier to you, but to en engine the difference is negligible?
It's a matter of scale.
Let me put it into perspective. You as a human, if in decent shape, can exert about 200 watts of power while pushing a stalled vehicle. The 4Runner takes more than 50,000 watts to maintain 65mph.
Do you understand now that it might feel heavier to you, but to en engine the difference is negligible?
10-01-2008, 09:19 AM
#35
10-01-2008, 09:23 AM
#36
I'm not even sure what you are trying to say, but consider that even a human with about 200 watts of power can overcome the rolling resistance of a 4Runner then this rolling resistance should not even be considered when we are talking about the energy it takes to maintain highway speeds. Especially when we are talking a few hundred pounds from a multi thousand pound vehicle.
Last edited by DailyDrive; 10-01-2008 at 09:26 AM.
10-01-2008, 09:34 AM
#37
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I'm not even sure what you are trying to say, but consider that even a human with about 200 watts of power can overcome the rolling resistance of a 4Runner then this rolling resistance should not even be considered when we are talking about the energy it takes to maintain highway speeds. Especially when we are talking a few hundred pounds from a multi thousand pound vehicle.
put that same 4Runner on a 15-20% incline road, then try to push it uphill. You'll see that it just got substantially harder. That's gravity at work against you, and yes, vehicle mass does have an effect on downward force due to gravity.
Another situation. Hook a 5000lb trailer up to the back of a 4Runner and go up a nice steep hill at 10mph. Wind drag can be ignored at that speed, but you'll feel the difference.
I'm not trying to be a smart ass... I'm just pointing out that there are certain factors you can't ignore when you're trying to do math, and mass in this case, is one of them. Will a couple of hundred pounds make a difference in this case? Not much... I agree with you there, but your general comment that mass makes no difference in gas mileage is wrong.
Last edited by GSGALLANT; 10-01-2008 at 09:36 AM.
10-01-2008, 10:22 AM
#39
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With my limited knowledge, I'll do a quick cameo and say that weight becomes less of a factor as speed increases. It takes a ton of more power to get something moving from a stop than to maintain a speed of an already moving object. To me, that would close the gap of the power needed between a heavier vehicle and a lighter vehicle while in motion (wind resistance removed). Ok, exiting stage. 
10-01-2008, 10:27 AM
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Yeah, seems like a lot of words (related and un-related) have been said to convey the message that we all don't believe that a heavy 4Runner will be able to consistently get 27mpg. I appologize to the original poster about the partial hijack to prove a point.
I don't think people's intent was to attack you for posting that you get 27mpg. Get a few more tanks through with various driving patterns and post up your results. I bet you'll still have good mileage in the 20's (but likely below 23 or 24).
I don't think people's intent was to attack you for posting that you get 27mpg. Get a few more tanks through with various driving patterns and post up your results. I bet you'll still have good mileage in the 20's (but likely below 23 or 24).
