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Comments
Wayne
06, 4.0, 2WD, 6 speed, 3,500 miles, flowmaster dumped, soon to add k&n 63-9025
I have the automatic by the way.
Wayne
Wayne
Any significant difference between a 5/6 speed (my preference) and an automatic, in either economy or handling?
Anybody towing with their Tacoma? How's that working out?
Thanks!
And the paint won't stay on the dern thing.
What values is everyone using to calculate MPG, I think my 02 XC 2.7L tank is 18.5G. That said, everytime at the pump, I fill 15.9-16.5G that drives ~340 ~350 and gas light comes on. Is ~20.6 to 22.01 my mileage?
Accurate numbers require that you divide actual miles driven by the actual gallons consumed. Since you don't actually measure the fuel you used, but do measure the distance, you're half way there. If you fill the tank to the same (or nearly same) point, then the fuel used since last fillup is the fuel you add to get to the same point.
i.e.- fill until the pump "clicks" (don't top off -though I do suggest that you fill slowly as you get near the top).
Reset one of the trip odometers. At next fillup, divide the number of miles on the trip odo by the number of gallons to refill the tank to the same point (click off of pump). that's all there is.
FWIW, I get 17mpg in town w/ DC V6, auto PreRunner and about 22 in hiway. currently 8600 miles. (did improve about 1mpg from first few tanks)
The error in fuel level fill of the tank should average out (in other words when you put more fuel in today and calculate with a higher volume-getting a lower mpg, the next time you fill to a lower level, the lower volume will compute a higher mpg. The average of those two will cancel out the errors in fill level.)
However, the round off or truncation errors in mileage driven (odometer) or in fuel dispensed (fuel pump indication) will remain, and these normally small errors have a larger effect if the numbers are smaller. (i.e. 0.049 gallon error has a more significant effect on the calculation if you only added 2 gallons than if you added 20 to your tank; likewise, 0.049 miles has a larger effect on the calculation over a trip of only 15 miles vs a trip of 315 miles.) That having been said, adding the gallons used over several fillups and dividing them into the total miles for the same fillups will remove the effect of different fill levels of your tank, but will not cancel out the roundoff or truncation errors of the individual measurements. (You can eliminate most of those from the mileage if you had recorded the accumulating ODO readings and used the difference btwn the last and the first readings to compute the overall miles travelled.)
I must not have explained it clearly, but first, clear your thoughts of any preconceived means of calculating fuel economy.
Bottom line- you want to know how many miles were traveled for each gallon of fuel.
Easiest/most accurate method without adding instrumentation- Fill the tank to a predetermined point (in this case, either always fill to the first "click off" of the pump nozzle, or the second one, but ALWAYS to the same point). Reset the trip odometer that you will use for mpg calcs. When you refill, (to the same point) the number of gallons logged on the pump is how much fuel you used. (You're restoring -as close as possible- the fuel level to where it was when you started the journey(s)) Record the miles elapsed on the trip odo, and the number of gallons pumped. Reset the odo. Miles elapsed - (nothing to do with fuel gage or the low fuel light - just the miles shown on the trip odo) this is the distance traveled since the previous fillup, at which point you had reset the odo.
Divide miles elapsed (as explained above) by the number of gallons shown on the pump. This is average the number of miles travelled per gallon of fuel (for the travel between fillups).
Now, with the trip odo reset to zero, you're ready for the next round.
Again, do not use the fuel gage or the low fuel light in any of this. That will certainly cause you to have the greatest variation in fuel measurement, and therefore, wide errors.
Also, don't fall for the idiotic calculation method that a local (non-Toyota) "svc rep" (I apologize to all true svc reps when I lump him in under the term.) told my buddy.
He said to fill the tank, and keep filling for 3 clicks of the fuel nozzle. Then drive to your next fillup and refill to only 1 click. Obviously, this is intended to mislead the consumer into believeing she/he had better fuel economy than reality. The firt fillup "over-fills" the tank (3 clicks). The second replaces fuel to a lower level, i.e. does not replace all the fuel burned over those miles, thereby providing a misleading number of gallons for the calculation. [Even this was not the reason why I told the svc mgr to not allow this clown to spk to me if they wanted to keep my business. That was because the guy spoke to me like I was an idiot.]
-m
The noise goes away after some mileage is on the engine. Also changing the oil filter to a Mobil 1 M-102 will increase oil flow and make it quieter.
Can anybody help me????
I'm assuming you have a V6 Auto? If you go by the US standards you are looking at 17/21 MPG with ideal conditions. So I think you need to adjust either your calculations or your expectations.
Use this conversion to be sure: 1 US gallon = 3.7854118 liters
Not this one: 1 Imperial gallon = 4.54609188 liters
You also are probably dealing with some winter blend of gas. I am going through the same thing here in the northeast US.
I have a 4x4 Access 6-speed with an EPA rating of 16/20. In the summer I was getting high 18's regularly. Best trip, all highway I got a shade over 20 mpg. Right now I'm looking at 15-16 depending on how much stop and go driving I do.
Make sure all your calculations are kosher and post again. I know it sucks but I'd stop using premium. You're wasting your money unless you tow.
They use imperial gallons to do the conversion:
They have: 15.0 City/10.9 Highway Liters per 100 Km and translate that to 19/26 Miles per Imperial Gallon
Conversion in US Gallons should be:
100 KM * 1 Mile * 1 Liter
15 Liters * 1.609 KM * 0.2642 Gallon
= 15.683 City
100 KM * 1 Mile * 1 Liter
10.9 Liters * 1.609 KM * 0.2642 Gallon
= 21.582 Highway
So the question is, are you posting your MPG using US or imperial gallons?
US Gallons - 17.8
Mileage - 22.51
2005 Double cab 4x4, V6, Auto, Premium
I have about 8,000 miles on it. I have a cap on it now. I live in the Florida panhandle.
Wayne
regular gas? I don't want a vehicle that requires premium or
even mid-grade gas. My Dakota V8 runs great on regular.
The timing will retune to get the most while avoiding knock regardless of octane you choose. The reference to the higher octane fuel in the literature is because it will retune due to the higher knock resistance and produce a bit more horsepower (or mpg if you don't demand everything it's got) if you use higher octane. However, I've not seen sufficient improvement in mpg to warrant the add'l cost per gallong for premium fuel.
ToyotaTom :shades:
2006 Toyota Tacoma Double Cab 4x2 V6 Auto
TRD Offroad Package
Tow Package
Canvas cover over the bed
50 mile round trip daily commute, Tampa, FL
60/40 city/highway driving
first tank / burned premium unleaded : 20.74 MPG
second tank / burned regular unleaded : 21.54 MPG
fasest on the highway was 70 mph at 2000 rpm.....
no jack rabbit starts.....kept rpm's under 2000 most of the time......punched it a few times to merge or to pass grandma.....
Not bad MPG so far....if it stays the same I'm a happy camper!
It was regular gas / IL
I have a Taco Prerunner Acc Cab 4x2 V6, automatic
2005 yr
6500 miles running syn. oil (just recently).
This run of 100 miles was mostly on cruse control but very
flat road.
I recall the tac was around 2.
I have since looked into the size of my rear end, it appears to be (Gear Ratio) 3.727. The nice lady at Toyota very sternly told me, "any changes would be a modification and may void your warranty" -- I tried and tried to explain to her that I'm sure other size gear/ratio's are installed which only got a rerun of the above " ". Ha, Any way, I will check this mileage much closer over the next week or so and report back; but 13.668 an't to good folks. I immediately cleared all trip monitors in case I made a misstake and have about 60 miles on one now, when it gets to 100 (city driving this time) I'll check it again. Hopefully, I made some kind of error!!
I think it's the 4.OL engine (it is a V6)
Milage: 6500
MPG: between 13.8 & 14.8 (18 on the sticker) and a good part of this was some distance driving.
Is engine still breaking in?
Besides do the usual change air filter, keep tires correct inflation; can't I sue?
I was originally told to burn Regular, now the more expensive stuff - haven't done this yet or much of anything yet, except clean my shotguns.
I've read about the truck computer learning your driving style, perhaps it's been set wrong and needs a reset? Hopefully one of the more knowledgeable people here will chime in to help you out.
Lawsuit?- You can file suit for almost anything against almost anybody, but winning... that's another story. Possibly, a lawyer would have to advise you as to whether you have recourse beyond lemon laws. Even so, I think you would have to prove that the vehicle is defective or doesn't meet claims, and that the mfr and dealer were unable or unwilling to solve the problem(s).
I don't know that your mileage (14.3 median) is so far off that an argument couldn't be made regarding driving style and conditions. Where you drive (terrain, wind, etc), the loads you carry, and how you drive make a big difference. My wife generally gets 2 to 4 mpg lower mpg than I do, depending on which vehicle and whether highway or city. (bigger difference in highway). She is not an agressive driver, but I've not been able to convince her that it is not necessary to have a foot on a pedal. She doesn't anticipate a signal turning red, or coast to a stop sign -she drives right up to it and stops. Like a lot of folks that learned to drive during the gas-crunch of the early 1970s, out of habit, I take my foot off the accelerator some distance from an intersection if I see the light is yellow or red, if I'm approaching a stop sign some distance away, or if it's a signal I'm familiar with and I see it's been green for a long time. I allow engine braking to deccelerate the vehicle, using the brakes only to assist and trigger the transmission logic that many new vehicles have. I actually accelerate more rapidly than my wife does. (In fact, accelerating too slowly can be more wastefull than moderate acceleration.) My double cab prerunner gets 17mpg in city running AC or defog most of the time. Highway I get 22/23. (towing my 1500 lb sailboat, which is a big wind drag, I get city mileage on the highway.)
I'm not saying that you drive like my wife, but I'm saying that given these differences exist, you would have to show that they aren't the reason for your numbers being lower than you expect.
If you're driving nothing but highway miles, and if you had records showing how the mileage you've achieved on other vehicles you owned have approached the EPA estimates for those vehicles, then you may have something. If you drive mostly in city or hilly terrain, carrying a lot of weight, or have a tendency to use your brakes a lot, your position is weaker.
You might check the brakes to see if they are dragging more than they should, but that's a bit of a long shot.
(Keep in mind that disc brakes always have the pads in close proximity to the disk, and generally rub slightly.)
15.25 miles per gallon (153.8 miles divided by 10.081gals) w/ 7000 miles on the engine.
This open road running, except for about 20 miles of city driving in this run, most of it in cruse-control on open road. Only three stop lights the whole time each way, (6 total). Only pushed it up once, on the way there and had it at 90 less than 30 seconds, then coasted it back down to the 60 mark.
This doesn't even meet the City Driving sticker of 18.
I don't know. I'll run this tank down to near empty and will use the highest grade of fuel next time. I'm positive my friendly salesperson said regular.
With or without the elephant in the back?
:sick:
Let us know your scan gauge results. Bet your mileage is best around 55-60. it starts to drop after 65, and moreso after 70 with the higher reving 6spd.