Yes 25mpg is a rough average. But if I drive 30miles on a consistent speed, the Nav estimate should be correct. When I slow down to stop/go traffic again then it will lower the actual mpg.

Last night in town I was getting between 16-20mpg with light traffic.

 

hrrmmm having not completely run the cleaner through the system yet I'm a little doubtful that its actually having that kind of effect so soon. This makes me think of the previous owner ran shitty shitty regular gas through it and screwed up the injectors and the fuel map have you tried to reset the fuel map?

reset fyi is unhooking negative terminal and hitting the brakes 5 times to discharge the short term fuel maps. (though i flip the ignition to full on then hit the brakes.. )

 

Yeah he might have unfortunately.. Everything else was maintained well but a lot of people do run lower grade gas... Ive noticed a fair increase in mpg from the looks of it. My needle has gone down 3 notches for 75km which is pretty good compared to before, and thats with 50-50 driving. I have done a lot of resets (ecu reset and idle relearn) but have not done that. But would the fuel map reset with the ecu reset? Aka pedal 5x wait 7 seconds more pedal stuff, flashing cel ect? If not I will totally give that a go! Yeah I was surprised it was making a difference early on but when I added the cleaner, I was getting a fair amount of white smoke like with seafoam and its mostly gone but its only run though a 4th of the gas I put in so the next fill up will be the real test.

 

You will need the fuel clear settings from a tuner app like Uprev to relearn those things.

 

I have noticed with ethanol l lose a couple mpg versus 100% gas!

 

Hey guys, so I tried to do the short term fuel trim reset (not sure if it did anything yet). I was driving today and I also noticed something I never really took a big notice to, when I brake and decelerate my rpms bounce a fair bit. I would say between 800-1200 rpms. I always attributed it to the brake booster working but am not sure? Just thought I would mention it and see if you guys have any ideas. Also I get my gas from a place that doesn't sell fuel with ethanol which is really nice, not sure if it's a lie or not though... It's just weird to me that my g as of the last full tank got 19mpg on the highway cruising at 60-65mph

 

That should be normal when the rpm's slightly bounce during downshifts. Its the transmission rev-matching for the decceleration IIRC. Someone here can verify.

I think at this point your mpg is close to spot on. Remember that these older cars are not as fuel efficient as the newer vehicles today.

For example, my other car is a 2003 Toyota Camry 2.4L 4cyl Auto with gets only 21mpg in the city. For a 2.4L that is pretty bad, so your 3.5L V6 with 19hwy is in the ball park. Could be better of course, but consider its a 11-12yr old car with older tech. Unless you have a manual tranny, theres not much you can do to improve it unless you drive like 50mph on the hwy.

 

Nothing to do with the age of the car and has everything to do with maintenance and driving style on top of engine size and transmission. My first car was an 89 Camaro with a 2.8L V6 and I got 36mph hwy (actual calculation). Honda insights from '99 are still the most fuel efficient vehicles ever made with some people getting up to 84mpg.

If an engine is tuned properly, and working correctly its efficiency is based on the driver, not the time of origin.

That's why its so hard to help someone who says they get bad mpg. OK, going 65 helps, but there are a lot of other factors in driving style that can significantly change your mileage. And what's normal to some is outrageous to others. Things like jack rabbit starts, jack rabbit passing, shifting at too high of rpms, shifting too low, not down shifting when its appropriate, not planning ahead for lights, and other traffic, etc. Etc.

 

Not exactly.

Can you squeeze 35mpg from a 3.5L V6 G35??

Or can you tell me how I can get 30+mpg city from my Camry? I'm all ears. Even 30mpg hwy is a stretch. I'd have to drive like 40mph on the freeway to get that mpg, which is unrealistic and unsafe.

FYI my dad previously owned the Camry I have, and bought from him when he upgraded to a newer Honda Accord. My dad, who has never gotten a ticket in his life, did every single maintenance on the Camry at the dealer. I call that car the "Unbreakable".

And it is rated at 21mpg city by Toyota which is what I get with normal city driving.

What a car gets for mpg is normally what the manufacturer will specify on the spec sheet. Although it may be possible to obtain more, usually they are spot on. You will get less when you drive aggressively of course, but you usually cannot get more than the reasonable mpg.

 

Hypermiling. Its a thing.

But yes, obviously at one point you're limited by engine size, weight of the car and tranny, but you'd be surprised what you can squeeze out of any car. I'm sure someone could squeeze 35mpg out of a G if they were experienced with hypermiling. You would look like a jerk on the Fwy tho.

That wasn't my point tho. I was just saying there have been fuel efficient cars for a long time and the Gs lack of efficiency doesn't necessarily have anything to do with its age.

 

In all seriousness...why?

 

This winter grade gas can play a factor in significant gas mileage decrease. Im struggling to barley get over 20mpg 70hwy/30city with the G based on trip odometer and guage calculation (however, my gas guage fluctuates so I really dont know how much gas I have left). My Torque app shows I get 22mpg on average. On a good note, my TSX which was averaging around 28mpg in the warmer months with 70hwy/30city driving is now getting 23mpg.

So not only the G is suffering from bad gas mileage. Also It could also be my Winter Sottozero tires causing drag on the highway. Man I cannot wait until late March

 

Why would anyone in their right mind hypermile in a normal situation?

Yes I actually was able to see 35mpg on my G35 on a lonely country road going 40mph in 6gear. Made me laugh actually, because it felt so boring and almost retarded. There were no cars around me and I was just cruising around listening to music when I saw that on the Nav info screen

But that was kinda the point you were trying to make. Hypermiling is not a thing that people will do on their daily commute. Its literally unsafe and unpractical.

Here's an article I found on hypermiling:

Hypermiling is awful and I sort of hate it
http://jalopnik.com/hypermiling-is-a...-it-1647016853

Kinda getting off subject here. That quote above of 62mpg target is from an Audi TDI, which normally gets around 45mpg being a diesel.

 

If you get the posted mpg you are driving the speed limit. I notice ethanol lowers mpg. By at least 2 mpg. I use 93 if available. And try to use 100% gas! I do push it and get at least 23 mpg. Im happy with my G! Performance and mpg go hand in hand. Mine is automatic X. Enjoy your G If mpg is your main concern get a mini cooper or vw beetle.

 

Because not race car. Haha