Car Gas Mileage?

BaLa · Post by **BaLa** » Sun Nov 08, 2009 10:01 pm

Some of you may know I drove a truck for about a year.
With the trucks we talked a lot about sweetspot (for Gas/Fuel Mileage) (RPM)

It depends on the Engine (Size), Gearing (Ratio), and Tire Size and type of tire.

Any kind of Calculator for that for cars online?

I currently have close to a 70 mile roundtrip to and from work.
I noticed it almost seems like I get a bit better gase mileage a bit closer to 70then I do at 65.

Humboldt · Post by **Humboldt** » Sun Nov 08, 2009 10:46 pm

BaLa wrote:Some of you may know I drove a truck for about a year.
With the trucks we talked a lot about sweetspot (for Gas/Fuel Mileage) (RPM)

It depends on the Engine (Size), Gearing (Ratio), and Tire Size and type of tire.

Any kind of Calculator for that for cars online?

I currently have close to a 70 mile roundtrip to and from work.
I noticed it almost seems like I get a bit better gase mileage a bit closer to 70then I do at 65.

Great avatar, is that your daughter and you?

Didn't find anything to help you yet.

http://www.google.com/search?q=car+mile ... =firefox-a

I've only got a 14 mile round trip but drive it twice per day (head home for lunch) in a '93 V6 Pathfinder, so the gas gets me. When I bought it 17 years ago it was 15-18, so by now my mileage sucks ass.

Let me know what you find

I'd hope a good combination of tire pressure, no excess weight, better spark plugs that fire more efficiently, debatedly a K&H filter, and well-tuned engine will make as big a difference as a sweet spot. Get them both dialed in and you're good to go.

BaLa · Post by **BaLa** » Mon Nov 09, 2009 12:47 am

I work in Waco. Trying to find something closer but.....
I drive an 06 Malibu Maxx it's got a 3.5L V6.

It gets between 30-34 (according to the comp in the car)
Alot of people say thats inaccurate, so if you subtract 10% that would be between 27 and 31.

I drive 34 miles from my Apt to work (one way)
I know I need some new tires up front as well.

Ok So,
If weight makes a difference, would you think it would make a difference if you never filled up your car/truck/suv?

I found this
http://www.faqs.org/qa/qa-2617.html

That is me and my daughter

If 1 Gal only weighs about 6 lbs, it wouldn't seem like it would make that big of a difference.
I have a 16gal tank that would be around 100 lbs, depending on what number you use.

http://www.ehow.com/how_4498241_improve ... leage.html
They mention it in step 3.

YARDofSTUF · Post by **YARDofSTUF** » Mon Nov 09, 2009 8:22 am

Yes weight matters but not enough to not fill up.

Fill up. Track the amount of miles you drive. Fill up again. Then do the math to figure out your mileage.

The 2006 Malibu Maxx with the 3.5 V6 is rated at 20 MPG city and 28 MPG hwy according to fueleconomy.gov.

blebs · Post by **blebs** » Mon Nov 09, 2009 5:39 pm

gasbuddy.com register and then use the fuel log book feature.

BaLa · Post by **BaLa** » Mon Nov 09, 2009 6:28 pm

I drive 98% Hwy to work.

Humboldt · Post by **Humboldt** » Mon Nov 09, 2009 11:43 pm

YARDofSTUF wrote:
Fill up. Track the amount of miles you drive. Fill up again. Then do the math to figure out your mileage.

He's not trying to figure out his mileage, he's trying to figure out if his vehicle has a given speed unique to its type at which it gets the best mileage.

Different things IMO.

YARDofSTUF · Post by **YARDofSTUF** » Tue Nov 10, 2009 5:30 am

Humboldt wrote:He's not trying to figure out his mileage, he's trying to figure out if his vehicle has a given speed unique to its type at which it gets the best mileage.

Different things IMO.

And he needs an accurate way to measure how much gas different styles of driving burn.

Plus He doesn't trust the car computer and taking off 10% isn't really an accurate method.

BaLa · Post by **BaLa** » Tue Nov 10, 2009 7:41 pm

reason I don't trust the car computer b/c it seems a little high to me.

All of this is really irrelevant I was not looking to expiriment, I know how to keep track of gas mileage properly, so thanks anyway. I'm not trying to do extra work with Pen/Paper. Besides half the time I am unable to fill up anyways.

I was mainly wondering at which speed I would (should) be getting the best gas mileage.

Humboldt · Post by **Humboldt** » Tue Nov 10, 2009 7:48 pm

YARDofSTUF wrote:And he needs an accurate way to measure how much gas different styles of driving burn.

Like he says in the post above this one though, he doesn't want to log every possible driving style combination, he wants something that says "drive this car at this speed for best mileage."

What's he supposed to do, drive the speed limit for 1 tank, then 5 miles under for another tank, then 5 mph over for another tank, 10 miles over for another tank?