I have a 2010 DC, 4.6l, with 91,000 miles. and the past three tanks of gas I have noticed my mpg has dropped way off. I usually get 19-20 mpg with 90% of my driving highway.
As I am figuring now I'm getting about 13-14 mpg. I've done nothing different and do not know why I'm seeing this. On Saturday I changed my plugs and cleaned my MAF Sensor. since then I filled up and have drove 90 miles today and have used a 1/4 of a tank.
Up to now I have had no issues with my truck at all. Any help would be appreciated.
If you are just basing it on miles driven versus the movement of the gas gauge, it is really not accurate. The only sure way is to fill, drive, and fill again. Then divide miles/gallons.
hook it up to the techstream...see if ur getting a fault in sensor (o2) or intake lose
Are these fairly common problems?
Reason I ask is because I too have a 2010, but with the 5.7. I've had it about a month now and I am getting sub about 9.5 mpg about 80/20 city/hwy? And the last 2 tanks I was very cautious of my foot.
__________________ 2010 Double Cab SR5 TRD Off Road 5.7L
I have a 2010 DC, 4.6l, with 91,000 miles. and the past three tanks of gas I have noticed my mpg has dropped way off. I usually get 19-20 mpg with 90% of my driving highway.
As I am figuring now I'm getting about 13-14 mpg. I've done nothing different and do not know why I'm seeing this. On Saturday I changed my plugs and cleaned my MAF Sensor. since then I filled up and have drove 90 miles today and have used a 1/4 of a tank.
Up to now I have had no issues with my truck at all. Any help would be appreciated.
WOW! You're doing some serious driving there bro. 91k miles on a 3 yr old truck. Not sure what the averages are for a 4.6l but my 5.7l is getting me in the 15 to 16 range.
Quote:
Originally Posted by KU_B
Are these fairly common problems?
Reason I ask is because I too have a 2010, but with the 5.7. I've had it about a month now and I am getting sub about 9.5 mpg about 80/20 city/hwy? And the last 2 tanks I was very cautious of my foot.
Ouch!
__________________ 2012 SilverSky CM Limited: TRD Shifter, aFe CAI, BedRug, Leer 550 Tonneau, TRD Sway Bar, V-LED interior (slowly but surely)
If you are just basing it on miles driven versus the movement of the gas gauge, it is really not accurate. The only sure way is to fill, drive, and fill again. Then divide miles/gallons.
not basing it on gas gauge moment, just wanted to give you guys a idea.
And yes I do a lot of driving. it is not uncommon for me to leave my house and when i get back that night i'll have put over 500mi on.
The more research I do I keep hearing winter gas will drop your mileage quite a bit. As I am from Texas that is something that I'm not familiar with. but i has be unusually cold down here for the past month. Could I be filling up with this?
I wonder if winter blend is nation wide, given that we Americans are prone to driving all over creation?
I am in the northeast. My 2010 has the 5.7 liter. I have been driving 100 miles per day virtually every day since Jan 1, 2012. That is about 90% highway miles. In the Summer, my mileage got as high as 18 mpg. My last tank was consumed at just under 14 mpg, so the combination of longer warm up times in the morning and "winter blend" has brought my fuel efficiency down a fair amount.
In Vegas we get our winter gas around October . There is always a sticker on the pump saying something like "this gas contains 10% ethanol" I'm not sure of the % or if it says ethanol but the gas is different and MPG's go down alittle. Your drop seems it is a combination of the winter gas and something wrong. I.E dirty air filter. etc,
__________________ 2012 TRD RW DCSB, TRD Dual Exhaust, Undercover Tonneau, 35% Tint, Toyota Stainless Side Steps, BW's, WheelSkin, Info Buttons, Rear Seat back Tilt down, Katzkins, BHLM, Pillar tape delete, Carbon Filter Delete, TRD Air Filter, Air Flow Accelerator...
My 2012 TRD SR5 6" lift 35 / 12.50's I'm getting 10.9 and this bites with only 25 gal tank. I'm coming from a 06 F-350 diesel that had a 38 gal tank on 7" lift 36/13.50's getting 18 highway 13.5 city . Truck looks great runs great but ouch fuel cost is not what I was thinking .
__________________
2012 Tundra CM TRD SR5
6" Procomp on 35 12.5
ATX Ledge Toyo MT.
idk what mpg i get...whats a good app i can use for sybian6 i always forget to reset the trip when filling up i got 35s with 7.5 inch in the front and 6 in the back gas isnt aways on my mind(i dont like paying for it) buts its because i have the SICKEST truck in the parking lot haha
Reason I ask is because I too have a 2010, but with the 5.7. I've had it about a month now and I am getting sub about 9.5 mpg about 80/20 city/hwy? And the last 2 tanks I was very cautious of my foot.
well u have 91k have u does service to the truck? things do get dirty and cause the vehicles to work harder then designed...hook up techstream...run some fuel cleaner a few times see where that gets u basically cost u about 25 dollars
I have a 2010 DC, 4.6l, with 91,000 miles. and the past three tanks of gas I have noticed my mpg has dropped way off. I usually get 19-20 mpg with 90% of my driving highway.
As I am figuring now I'm getting about 13-14 mpg. I've done nothing different and do not know why I'm seeing this. On Saturday I changed my plugs and cleaned my MAF Sensor. since then I filled up and have drove 90 miles today and have used a 1/4 of a tank.
Up to now I have had no issues with my truck at all. Any help would be appreciated.
Just wondering, how did you clean your MAF Sensor? Wipe it with a rag, use any kind of cleaning solvent on it? Any chance you damaged the MAF or the wires attached to it during the cleaning process? Does the engine run & idle now as it did before you did the maintenance on it? (ie not running rough or bouncing idle, etc)
I do agree with others that winter blend gas will decrease MPG. Also agree with bodio about hooking your truck up to techstream and checking for any codes/faults.
Just wondering, how did you clean your MAF Sensor? Wipe it with a rag, use any kind of cleaning solvent on it? Any chance you damaged the MAF or the wires attached to it during the cleaning process? Does the engine run & idle now as it did before you did the maintenance on it? (ie not running rough or bouncing idle,etc)
Cleaned it with CRC brand MAF sensor cleaner as per the directions.
The engine runs and idles fine before and after the maintenance.
Talked to the tundra tech today at the dealership. He said that he gets 2-3 calls a day about the mileage issues, and yes it is the winter fuel. Since it never gets that cold here it does cause an alarm when we do get a batch for unexpected cold temperatures
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2008 CrewMax Limited 5.7 / Slate Metallic
My Truck
2010 Double Cab SR5 TRD Off Road 5.7L
Huntress
WOW! You're doing some serious driving there bro. 91k miles on a 3 yr old truck. Not sure what the averages are for a 4.6l but my 5.7l is getting me in the 15 to 16 range.
2012 TRD RW DCSB, TRD Dual Exhaust, Undercover Tonneau, 35% Tint, Toyota Stainless Side Steps, BW's, WheelSkin, Info Buttons, Rear Seat back Tilt down, Katzkins, BHLM, Pillar tape delete, Carbon Filter Delete, TRD Air Filter, Air Flow Accelerator...
MIDNIGHT RIDER
