Miles per Gas tank

Post by **ca996** » Wed May 02, 2007 7:52 pm

How many miles are you guys getting out of a full tank of gas? So far I have filled up twice and can't even get over 200 miles. I just filled up with 1/4 tank and had only 135 miles with 60 miles to empty. The car only has 500 miles and i have filled up 3 times.

Post by **tomosawa** » Wed May 02, 2007 9:45 pm

I'm assuming you have a M45; I get about 12.6 mpg! Tire PSI is usually 35 - 36. This involves mostly city driving and a little highway.

Post by **carbuff** » Thu May 03, 2007 2:34 am

My M45 has 5300 miles on it. The majority of my driving is stop-n-go in the city. I have averaged 15.5 mpg for this distance.

I would like to get more mpg but I know that until I am able to drive longer distances at better rates of speed, I will not get better gas usage.

Post by **Nick240sx** » Thu May 03, 2007 2:38 am

i pwn u guys, but with half the power lol

i get about 350-440ish per tank at 17 gallons. gotta love MIVEC.

theres gonna be a difference though between your V6 and V8 M's obviously, and i would assume also a difference with the X.

Post by **mousie** » Thu May 03, 2007 4:10 am

I have an M35 and get about 325-340 miles per tank

Post by **Johntomferg** » Thu May 03, 2007 4:36 am

I get about 17-20 MPG with 91 octane on avg, fill-up to fill-up. It's a mix of driving (some city, some freeway).

I think it is a 20 gal tank - not sure.... but if that is right it would make the low end @17mpg about 340 miles

Post by **buhdda** » Thu May 03, 2007 5:18 am

that seems incredibly low. I have a m45 and I'm either in stop and go rush hour traffic, or when i'm on the highway i floor it, either way i do not get good gas mileage (16-17) but with a 21 gallon tank i still get 330+ miles/tank

Post by **sr79labrat** » Thu May 03, 2007 5:43 am

I have averaged about 19 for the last 3800 miles. Most of my driving is in the city. It really helps on the M45 to keep your foot out of it. I was getting 15-17 and started taking it easy to get 19. I am also going to throw on some exhaust soon to try to up the power and MPG.

Cheerio, Kyle

Post by **auditech10** » Thu May 03, 2007 9:55 am

I used to drive mostly highway with my 03 m45 and got about 18.5 BEST. Now I drive mostly city and get about 14-14.5 best. Good ole V8 with only 5 speed tranny, gotta love it!

Post by **szh** » Thu May 03, 2007 11:43 am

I do about 70% highway diving, with slower stop-n-go for the rest in my 2003 M45.

I average about 16 to 17, sometimes 18mpg for the tankful. Given that I tend to fill before it really gets empty, I can easily count on a solid 300+ miles per tankful before I fill up again.

Z

Post by **ca996** » Thu May 03, 2007 3:00 pm

OK mine is a 2007 M35!!!!! you guys with the 45's are getting better mileage than mine. Wassup with that, had I known I would of gotten the 45. I even spoke to a dealer who said 11-13mpg for a M35 is not unusal desptie the 18 mpg rating.

Post by **ca996** » Thu May 03, 2007 3:02 pm

Oh ya, it's a sport not an X

Post by **auditech10** » Thu May 03, 2007 6:05 pm

How is your driving(highway, city)? Depending on that I would say that maybe its because it is an almost new engine. The oil hasnt had enough time to work its way into the clearances yet, or the clearances havent gotten to optimal yet. Wish I could help more.

Post by **spisam** » Fri May 04, 2007 1:07 am

In a combination of city/highway driving I'm getting about 16.5 MPG. On a recent trip, mostly highway I got about 20.5 MPG. I have a 2007 M45 with 2800 miles on it.

Post by **MinisterofDOOM** » Fri May 04, 2007 2:33 am

Nick240sx wrote:i get about 350-440ish per tank at 17 gallons. gotta love MIVEC.

The VK has variable timing controls as well. It's not MIVEC that's responsible for the Galant's good fuel milage--it's the fact that it makes very little power for what's under the hood (although 230 is still a good bit of power for the car it's moving).

Some not-really-math:3.8 liters + VTC + VVL = 230 hp. (Galant)But3.7 liters + VTC + VVL = 330 hp. (G37)Or3.5 liters + VTC (no VVL) = 300 hp. (G35)Or even (slightly more fair)3.5 liters + VTC (no VVL) = 270 hp. (Altima)

So I certainly hope it gets some damn good fuel milage.

Post by **Nick240sx** » Fri May 04, 2007 2:35 am

MinisterofDOOM wrote:

The VK has variable timing controls as well. It's not MIVEC that's responsible for the Galant's good fuel milage--it's the fact that it makes very little power for what's under the hood (although 230 is still a good bit of power for the car it's moving).

Some not-really-math:3.8 liters + VTC + VVL = 230 hp. (Galant)But3.7 liters + VTC + VVL = 330 hp. (G37)Or3.5 liters + VTC (no VVL) = 300 hp. (G35)Or even (slightly more fair)3.5 liters + VTC (no VVL) = 270 hp. (Altima)

So I certainly hope it gets some damn good fuel milage.

thanks for exposing my secret way of saying I HAVE NO POWER! jerk jk. haha.

Post by **auditech10** » Fri May 04, 2007 8:14 am

haha, got caught huh?

Post by **Q45tech** » Sat May 05, 2007 3:56 am

If you don't follow EPA test proceedure exactly or if you use ethanolized fuel or fuel that does not meet the criteria for BTU per gallon EXPECT lower than published results.

Since 9/11 refineries have steadily reduced the BTU of gasoline to stretch the amount of gasoline created per barrel of oil. This retail gasoline is not used for MPG testing as it would result in a 8-12% loss in MPG in certain situations.

Torque is created from BMEP and BMEP is a direct result of BTU per gallon!

Speed and acceleration are the major culprits, driving more than 61 mph or using AC or carrying passengers.

The new updated 2008 EPA Test Numbers should better reflect the typical use, however they still will not consider AGGRESSIVE driving [fast acceleration] NOR speeds above 70 mph...............nor overweight drivers or occupants.

Post by **GJEMD** » Sat May 05, 2007 4:10 am

ca996 wrote:OK mine is a 2007 M35!!!!! you guys with the 45's are getting better mileage than mine. Wassup with that, had I known I would of gotten the 45. I even spoke to a dealer who said 11-13mpg for a M35 is not unusal desptie the 18 mpg rating.

Wassup is called Wt / torque ratio. you've heard of Wt/Hp ratio regarding acceleration. Well, Wt/torque has major impact on fuel efficiency . A lot of the avg MPG has to do with taking off, ex city vs highway mileage. Its well known that fuel efficiency decreases in underpowered vehicles. The M45( 300ft/lbs) just kills the M35 in TORQUE. Same car(wt) lower torque M35 uses more fuel to take off and reachspeed compared to the M45. Now, this applies to conservative driving. If you throw he M45 around at 4-5000 rpm MPG drops to 12. Torque is why diesels get good mileage. I have a 5000 lb stretch diesel Mercedes S that has 140HP but 250ft lb of torque and it gets 19 in town and 27 on the Highway. Lower torqueand final drive ratios most likely explain the difference in fuel efficiency between the M35 and the M45

bigred08046 · Post by **bigred08046** » Wed Nov 29, 2023 3:21 pm

I increased 2 mph by removing the awd fuse under the hood next to battery. If I need AWD simply put fuse back

Post by **TDot** » Fri Dec 01, 2023 8:44 pm

I assume you mean 2 mpg. Can we get one or two more confirmations on this please. I have too much to do to my car right now to trust whatever results I get.

Miles per Gas tank

Miles per Gas tank

Re: Miles per Gas tank (ca996)

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Re: (MinisterofDOOM)

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