Sorry, I don't know why I read it that way. I think all the blood went to my stomach.

 

It happens.

I drive about 40-45K miles a year so I monitor my MPG closely. It is one of the reasons I went with the TL. I had an Infiniti I35 before this and I get about 10-15% better mileage with the TL. I wasn't ready to get a Hybrid.

If you want to know if it is your car or just your style of driving I suggest you go on a highway only road trip. Drive out 100 miles or so and back. Calculate your MPG's. It should be 25-29 depending on speed.

 

Just for the record, best I have ever gotten with my '04 manual TL was 27.98 for a work week of in-town work commuting during the summer. Best highway was 33.94 on a road trip in the summer with the A/C running the entire time. I can elaborate on the conditions if needed but as you can see from the decimal fractions, these were carefully calculated figures, not from the MID.

 

Wow 40-45k a year? I don't think I'll even drive that much in 10 years.

Those seem to be pretty good numbers. My numbers on the MID are getting worse. Currently getting 14MPG with light accelerating and braking.

 

Clear the MID and starty over with the good gas. Expect worse mpg if you have a moderate to heavy foot. If you have a light foot the trip cpu will reflect that. Put 35psi in your tires too. But lets be serious. We didnt buy a sport sedan for its good mpg but rather good power whether its a 3.2 ot 3.5L V-6.

 

I've cleared it a bunch of times after filling with premium. Yeah, I didn't buy the TL thinking it'll get prius miles, but it's just weird that I got 18 MPG when I first started driving it. Now I'm at 14 MPG. I just started driving slow like I first got the car. Hopefully it'll increase. Put in 35 PSI? I thought the recommended level was 33/32.

 

I know whats recommended bro. put 35psi in.

 

I'm not sure if anyone said this or not but keep in mind that your tire pressure will vary when your tires are warm/cold. Your best bet is to check them cold and inflate accordingly.

I like running somewhere around 35/36 front and 33/34 rear. My logic there is less weight in the rear and it helps the rear tread make contact to the road similar to the front with the load of the engine pushing down.

Opinions on tire pressure are like opinions on oil or spark plugs, they are going to vary....

The TPMS reading is pretty accurate IMO, I check mine about once a month and when I adjust them the pressure display always matches what the gauge did when I filled them.

 

I recommend 34-35 PSI as well. For me it helps with the flat spotting and the MPG's. And you really do not feel the difference or wear the tires incorrectly.

Have you tried taking it out of the city for a highway only trip yet?

 

Cars are made to be driven. I commute 70-75 miles each way for work and do a lot of business travel as well. Spend a lot of time in my car. We also have an 03 Pathfinder and that gets about 8K - 9K miles a year. By next March I would pass the Pathfinder in miles.

 

Hell yeah, drive that biotch just as it was intended to be!

I put 5K on mine since late August.

 

Thank you.. glad to see some of us still have patience.

Since air is roughly 78% nitrogen, yes.

 

I'll put in more air and see if that improves the mileage.

I haven't had a chance to get on the highways yet. I think I still need more experience driving before I get there. Soon as I feel more comfortable on the road and I have reason to travel far, I'll hit the highways.

 

Man you guys are awesome. I've started to hit 18 MPG on the trip computer. Mostly 17 MPG. I'll do some testing over the next few weeks and see how accurate the trip computer is. The premium is awesome stuff. Acceleration feels a lot smoother. Should I still do the ECU reset and risk some mile dropage? I'm pretty happy with 18 MPG. If I get even higher, I'd be ecstatic.

As I was filling up, I tried to attach the gas cap leash to the lid and I failed. I found the correct area, but how do I insert it without breaking off a prong?

 

Resetting ecu will only make mpg even better. I'm glad you saw the gains i assured you would get from filling tires to 35psi w/ good gas. Resetting ecu will allow the car to relearn your driving habits with the 91+ octane fuel. Switching to hondas 0w-20 oil which is synthetic will help mpg as well. Myself and others that live on the coast or plains see 34-35mpg on highway. Mixed driving I see avg of 20mpg and that's with 80% city/ 20% hwy driving.

 

Really? I was going through one of those resetting ecu threads and few of the members said their MPG dropped 2-3. If I hadn't read that, I would've definitely done it. Thanks for the tips.

My Oil is at 90% according to the MID. Should I change it now or wait til it drops a lot more?

 

Thats because many complained about how sluggish the car drove etc etc, and when they did the reset the car was more responsive, so according to the owner's "butt" dyno the car felt more powerful and in such many drove their TLs harder. Just like ParaSurfer said, reset it an let it relearn YOUR driving habits. Car's these days adapt or "learn" how you drive, altering shift points, pedal response, etc.

As for the MID, if it's at 90% and that's fresh oil, no need to change it till you get down to ~ 15%. Some people range from 5-20%... i've seen 0% in some cars lol

 

ohh snaps only 47 for a full tank. I miss that lol its like 60+ by me haha

I pump my tires up to 40 not sure if a lot of people do that but it helps on the gas a little bit.

 

I think I'll reset my ecu after a week. I'm currently testing to see how much accurate my trip computer is with calculating MPG. Hopefully it'll be better after the reset.

Wow 60?, man how much is premium there? I'm a little scared to have my tires at 40 psi. I think the max for my tires are like 42. I think once the tires get warmed up, it'll pass the max limit. I don't want to find out what happens when I reach the limit. I'm guessing all my tires just explode then I drive on the rims causing a nice light show.


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I finally had to chance to air my baby out on the highway. I was doing 60-80mph. Fast for me, slow for everyone but me. I noticed everyone was cutting me up. I was expecting some better mileage up, but I topped at 20 MPG. I don't get how some people were getting 30+MPG when I can't even hit 26 MPG.