22re mpg is different on same models in diff yrs?

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Old 07 Jul 2010, 03:45 pm   #1 (permalink)
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Default 22re mpg is different on same models in diff yrs?

y is there a difference in mpg on a toyota 1 ton truck manual. from 1986 to 1988. its the same engine but they do have different emmisions. i have been told that emmisions dont hurt gas mileage but im beggining to think they do. and the 4runners its the same thing as well. and dont tell me its not emmisions cause u can go online and check these numbers yourself. the trucks are the same but one has a few more vacume hoses then the other. and if someone out there can tell me what to eliminate that would be great.















a 1986 and a 1988 1ton toyota manual trans standard can 22re are the same exact trucks with the same drive train. the 1986 gets 26mpg the 1988 gets 22 mpg those are the numbers given by the this is the link to the 1988 fuel economyhttp://www.fueleconomy.gov/feg/sbs.htm and this is the link to the 1986. http://www.fueleconomy.gov/feg/sbs.htm the same can be said about the 4runners. there is no diff betweent the 2 trucks other than emmisions on the engine.
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Old 07 Jul 2010, 03:49 pm   #2 (permalink)
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all your gona do is mess it up...many things could be causing differnce...















1 weight of truck















2 gearing of tranny and rear end















3 aerodynamic differnces















4 engine compression or cam/timing change































dont think you can remove a "device" and gain a mpg or two
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Old 07 Jul 2010, 03:55 pm   #3 (permalink)
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its all a eliminate as to what one gets or not since most mpg test are done on a track or on a machine and not under normal driving under perfect conditions and one type of fuel and are the best one might get what owner or drivers might get wil never be same just close to it
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Old 07 Jul 2010, 04:05 pm   #4 (permalink)
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Not sure about your Toyota but removing the catalytic converter on my diesel gained me a few mpg's, so did a cold air intake and a programmer. It now gets 22-24mpg out of a 8000 pound pickup! Up from 16mpg when new.
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