noticeable increase in fuel consumption, losing 50 tacoMiles per tank of tacoJuice... what is going on?

350 miles
18.1 gallons
19.337 mpg

Still Not back to Normal
That last tank of tacoJuice was exceptionally full as well
 
I can tell you one thing, this heat is delivering good fuel economy to my tacoma. It just sails along in this warm air effortlessly. 1750 rpm at 70 mph barely touching the go pedal. Generally my dash fuel gauge is fairly accurate within a couple tenths...currently its just a smidgeon past 23 mpg.
 
Your problem is feeding your engine with some sort of taco juice.....try gasoline it ignites better.

Btw, the more you needlessly wear out an engine, efficiently slowly drops. That equals lower mpg. Plus compounded with winter fuel you're now using. I hope you can understand that.
 
Any amount of bs is possible...are you fouling plugs?...can't start your truck? (which I doubt), that would be a sure sign the plug installed is too cold causing a rich condition...otherwise they'd have to be so different your engine wouldn't run, or the plugs used had the wrong reach which would likely damage your engine. I seriously doubt the sparkulaters are the issue.
My guess the amount of year in, and out driving wear, and tear has slowly worn out your engine, along with the fuel system, and electrical associated components causing an accumulated loss of efficiency.. It's why they make new vehicles. You must understand that by now, everything has a self life.
I use to hear it all the time in my business....''everyone wants to go to heaven, but no one wants to die.''
 
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it barely has Any miles onit o_O

diffrent types of spark plugs were used over a year ago they said they be aok and would last longer
but IDK

why they make new vehicles that are just plain nasty lookin!?!? all started with that Gen2 redesign and lost the whole classic look LMAO
and it kept getting worse and worse and worse as the time marched on...
no more compact pickups, too big all around too nasty and Cheap AF parts they made them out of
like barf me out man...
i have spent now 20 years looking at the crappy BS they put out on the lots to sale for now obscene prices
 
What can be said other than you fall into the oddball category that can't accept change. Most thought the gen2 was a vast improvement in the tacoma styling, the gen3 had even more aggressive good looks. As for the gen4, I have some agreement that I think toyota went a bit too far with its exterior styling, but if this has positive effects on fuel economy, and wind noise, I'll accept it for what it looks like. I wouldn't derate the gen4 till you've taken a test drive in one. Imo, it performs better than it looks. For someone that has a tired worn out tacoma, and wants to stay with toyota to begin a new chapter, I think the gen4 will be still a good choice, although you might not like the initial cost, or the maintenance down the road, but this is where the entire auto industry has been pushed to go.
Just read whats happened to Nissan. A buddy of mine recently bought a frontier a couple years ago, and is crapping his pants his frontier may become worth zilch.
 
...still is an issue here with mpg
tacoma styling sorta started the downhill trendy spiral in 1998 imo
 
issue is not exactly sure what the problem is!?? ... too Many Hacks out there
probably gotta throw the parts cannon at it LMAO
get 'er back 2 good
 
Your issue is a tired worn out engine that has less power then when it was new pushing the same weight vehicle. You're requiring it to work harder burning more fuel. I got a 50 year old tractor that does the same.
 
MPG just does not Drop off a cliff like it did like that
it was VERY noticeable once it left the shop
 
What else can one say other than you can lead a mule to water, but can't make him drink it if the mule doesn't want to.
 
can the 02 sensors be tested before porking out +200$ for new oem

they may be easily removable but IDK lol
its been 5 years since removed from pipe with new nuts and they lookin' crusty a bit


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I would think a bad 02 sensor would trigger the cel, that's what happened when the upstream 02 sensor went bad on my '02 Taco! Just my .02! The downstream sensor has never been replaced on mine, of course now that I said that it'll go out! Lol!

I also bought a Denso upstream sensor like Tacojoel said he did, only I bought mine from Advance Auto! I don't have anything against Rock Auto, it's just I'd have to wait for the part to be delivered once I order it! Then if I receive the wrong part I have to go through the trouble of sending it back, which is a pain in the a$$ to me! Just makes no sense to me!
 
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Anyone with a tenth of a brain would stop dumping money in that old worn out turd, and get himself a new vehicle. Running it like you stole it would surely end up pushing that old truck to the boneyard......would you make your grandmother do a 10 mile hike?
Btw, the dealer had done a reflash on a buddies 2022 gen3, and it seems to have helped from what I'm told. He's much happier the way the trucks drivability has improved.
 
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