What kind of MPG do you get?

Post by **BlueC** » Tue Mar 21, 2006 4:58 pm

As the title says. I'm interested to know the average MPG that Y33 and G50 owners get on city and hwy driving.

I have 245s all around for tires, so that might be why I get such terrible mileage. I average 15mpg with 80% city/ 20% hwy.

Post by **Jeff Williams** » Tue Mar 21, 2006 5:09 pm

I averaged 20 to 22 in Layla (1994 Q with 240K). Layla has 17 x 7x with 255/45/17 tires.

I get 18 to 20 in Lola (1994 Q45t with 130K). Lola has 18 x 8 with 245/45/18 on the front and 18 x 9 with 275/35/18 tires.

Both are/were wll maintained.

I drive 80% on the highway, and 20% back roads/city driving.

YouTube · Post by **Jesda** » Tue Mar 21, 2006 5:12 pm

I cant tell yet. In town Im getting 13-15. On the highway on trips its not much better since Im always at 100-110mph.

Post by **maxnix** » Tue Mar 21, 2006 5:41 pm

Might check the previous thread on this topic for some quick data.

Formulations, weather, roads, driving environments all yield varying results. 22 mpg at a constant 60mph with no grades is probably the best you can expect in a G50, maybe 24 mpg in an FY33.

Maybe the F50 guys can chime in as there were fewer before.

Post by **BlueC** » Tue Mar 21, 2006 5:49 pm

Ok so im not the only one. For some reason I thought these cars got 18mpg in the city. Just needed to figure out if it was time for a slight tune-up.

I guess you cant ask for much since we're driving 4000lbs sedans powered by a performance V8.

I'll find out how highway is when I take a few road trips this summer. I can't wait, this car LOVES the highway.

Post by **BlackBirdVQ** » Tue Mar 21, 2006 7:20 pm

My gas mileage is bout 20MPG with 50/50 city and highway driving. I got 200 miles out of the last tank of 10 gallons of gas that I filled her up with. I put her up to full this week- 17.5 gallons of 93, and I drive semi aggressive with few quick bursts of speeds into the deep 100s here and there. I got my new starter in it tonite (what a bizznatch but doable) as the old one was acting up so I haven't really driven it since yesterday morning. My bushings are very worn out - waiting for the UPS guys to drop off all my goodies and then I can attack the suspension and enjoy the car a bit more, as over 70MPH it vibrates like crazy.

Post by **jamesmost** » Wed Mar 22, 2006 2:15 am

Jesda wrote:I cant tell yet. In town Im getting 13-15. On the highway on trips its not much better since Im always at 100-110mph.

SAME 13.68 and like that

Post by **Q45tech** » Wed Mar 22, 2006 2:38 am

EPA rating 16/22 or 15/21 with active assuming non oxygenated fuel with a normal BTU content following inaccurate [for most drivers] speed/load conditions.

Obviously 13-16 city and 19-23 highway is in the average range with todays gasoline..............just like all 4.5 liter 4,000 pound vehicles.

Post by **elwesso** » Wed Mar 22, 2006 5:10 am

Back when i did my city driving, I would get about 14MPG... That was all city short trips... Now I get about 18-19 in the winter, and 20-21 in the summer... Winter gas really does make that big of a difference.

Post by **Q45tech** » Wed Mar 22, 2006 6:43 am

One must measure the BTU of what they are buying or just accept the consequences . You cannot depend on your STATE to test the BTU quality of the product.

"Every day, field inspectors perform random testing of the quality of the gasoline sold at gas stations across the state. Tests include octane, cetane, oxygenates and sulfur content. "

"Governor Pawlenty signed legislation in 2005 that will double the amount of ethanol in gasoline in Minnesota. Under the legislation, a new E-20 mandate would take effect in 2013 unless ethanol has already replaced 20 percent of the state's motor vehicle fuel by 2010. "Attention all Minnesota Q45 owners

Post by **Q_SHIP** » Wed Mar 22, 2006 6:46 am

Bad........but you have to pay to play.

Post by **Q45tech** » Wed Mar 22, 2006 7:02 am

Ethanol has only 85,000 BTU vs Conventional 120,000 BTU per gallon so 10%Ethanol reduces the combined power production by 3% plus any amount of water dissolved in Ethanol has a ZERO value.

Most blends as pumped into tank have some water so 5% reduction is a good average.

Besides 5% less MPG you get 5% less Torque and HP [on average] all depends on the O2 sensors [it can actually be 8% as the ecu sends an extra 3.8% fuel volume to make O2 read right...... the sensor is calibrated for non oxygenated gasoline 14.7AF...........the O2 reads 15.26 and the ecu sends extra fuel to bring it back to 14.7.........hope that's clear?

Post by **Q_SHIP** » Wed Mar 22, 2006 7:08 am

Q45tech wrote:Ethanol has only 85,000 BTU vs Conventional 120,000 BTU per gallon so 10%Ethanol reduces the combined power production by 3% plus any amount of water dissolved in Ethanol has a ZERO value.?

Thats my problem. I can drive 30 miles to get the good stuff. The whole state of WI will be running with the 10% crap soon.

Post by **elwesso** » Wed Mar 22, 2006 7:08 am

I think 8% is a good average... Plus when its cold it takes longer for the diff to get warm and thus really decreases mileage.

Post by **Q_SHIP** » Wed Mar 22, 2006 7:13 am

elwesso wrote:I think 8% is a good average... Plus when its cold it takes longer for the diff to get warm and thus really decreases mileage.

Also winter blend gas???

Post by **elwesso** » Wed Mar 22, 2006 7:33 am

Yeah, I mentioned that above... I see about 10% loss, about 8% from the gas and the rest from what i just listed.

Post by **squeefoo** » Wed Mar 22, 2006 7:45 am

Q_SHIP wrote:Thats my problem. I can drive 30 miles to get the good stuff..

You mean out here by me? You should fill up on it once in a while just to see how much better it runs.

Q_SHIP wrote:The whole state of WI will be running with the 10% crap soon.

No that failed to pass in the Senate, they got so many phone calls they shyte their pants...

The EPA says the 5 county region doesn't have to use gasohol, but they're still selling it..... Of course nothing in the paper... if you don't report it -it's not news.

squeefoo wrote:Just looked it up I got 23.94 MPG during a trip to Chicago last April. Haven't gone anywhere beyond 30 - 40 miles lately.

zerothread?id=74582

Post by **3rd Q** » Wed Mar 22, 2006 8:46 am

Blue,

15 city19 highway

Pretty consistent over 11 years with 3 different Qs - only reformulated gas available. Mileage is less with sucky winter gas .

Paul

Post by **Q_SHIP** » Wed Mar 22, 2006 8:51 am

squeefoo wrote:You mean out here by me? You should fill up on it once in a while just to see how much better it runs. No that failed to pass in the Senate, they got so many phone calls they shyte their pants...

The EPA says the 5 county region doesn't have to use gasohol, but they're still selling it..... Of course nothing in the paper... if you don't report it -it's not news.

zerothread?id=74582

Thats great news!! I havent been following it.

I usually fill up on it once a week. My parents live in Mukwonago. East troy is 5 minutes away and they have it. My car runs on mostly the normal gas. I only use the local stuff if Im on fumes between fill ups.

Post by **Falkdesigns** » Wed Mar 22, 2006 9:12 am

Running Chevron 91, I get 12-13 mpg around the city and solid 20 mpg @ 85 mph w/ air on fwy.

Post by **Q_SHIP** » Wed Mar 22, 2006 9:20 am

Falkdesigns wrote:Running Chevron 91, I get 12-13 mpg around the city and solid 20 mpg @ 85 mph w/ air on fwy.

I would be so pissed if 91 was all I could get.

Post by **Q45tech** » Wed Mar 22, 2006 9:52 am

You cannot trust pump octane numbers to be accurate just that premium is likely to have a higher octane than regular............93, 92, 91 may be the exact same fuel. Different refineries test the output in different ways.

Remember there are only two fungible fuel grades per loacation......mid grade is a blend that is suppose to be 50/50 HOWEVER that is up to Tank farm. Some stations local mix from two tanks.

"To obtain an on-test blend, on time, every time, refiners use computerized blending programs to generate an optimized blend recipe. A computer program integrates all the performance, regulatory, economic, and inventory requirements."

"Adulteration differs from contamination in that unacceptable materials deliberately are added to gasoline by unscrupulous people to enhance their income. It may be as simple as adding regular=grade gasoline to the premium-grade gasoline storage tank, which lowers the octane number of the premium. In areas where kerosene is less expensive than gasoline because of government subsidies and/or no road taxes, kerosene may be added to gasoline. This not only lowers the octane number but also adversely affects the volatility, which in turn affects driveability. Used toluene from manufacturing processes containing soluble silicon compounds, which was supposed to be used as a paint solvent, has found its way into gasoline. The silicon fouled oxygen sensors and plugged exhaust catalysts, causing severe performance problems and expense. In some countries, dyes and markers are used to detect adulteration. ASTM D 86 distillation testing and/or ASTM D 2699/ASTM D 2700 octane number testing may be required to detect adulteration. "

"The ASTM specification for gasoline, D 4814 — Standard Specification for Automotive Spark-Ignition Engine Fuel, is widely recognized.2 Footnotes

2 The hyphenated suffix associated with the method number indicates the year the method was last updated and the version within the year, e.g., D 4814-03a.It has been written into federal regulations and most state specifications for gasoline.

D 4814 specifies nine gasoline properties (Figure 3-5). These do not include octane number or antiknock index, which are set by gasoline refiners and marketers "based on their perception of the technical and competitive needs in the market."3 Footnotes3 ASTM D 4814http://www.chevron.com/product...5.asp

Post by **Falkdesigns** » Wed Mar 22, 2006 9:56 am

Why I only run Chevron gas.

Post by **Q45CALIBER** » Wed Mar 22, 2006 10:01 am

I only run 93 Octane. I get 200 miles on avg. per full tank. Which by the way is 60 bucks out this way!

Post by **Q45denver** » Wed Mar 22, 2006 10:24 am

In warm weather, I've gotten up to 24 MPG on long trips averaging 75-80 mph using 4 ounces of acetone additive in both my 1995's. My 1990 gets a couple of MPG less under the similiar conditions and without the acetone the mileage in the 1995 is a couple of MPG less. The 1990 has had several engines and they all got about the same MPG. Around town there is only about one MPG difference between them... 14 vs. 13. During the winter I also get about one MPG less.

Post by **captainluigi** » Wed Mar 22, 2006 12:19 pm

1996Qt, in good tune,93 octane(so they say) 22/23 hwy @75/80mph(always on cruise control). do not do city driving, don't got one, don't want one, don't need no stinkin city but ''mixed drivin yields 16/17mpg. i keep and calculate EVERY tank-o-gas. ocasional speed burts to 130 on the 7 mile or bahia honda bridge.

Post by **captainluigi** » Wed Mar 22, 2006 12:32 pm

Mr. Q45 tech, of all the auto forums i've belonged to in the past, MB380sec, BMW325i, and yes even detroit iron (70 mustang). you dude are the most knowledgeble auto tech i've ever read. dude, i gotta ask, do you keep all that in your head? glad you are here man, a lot of what you post goes so over my head and i'm sittin up straight as i can. never the less this forum would be a lot less informative with out you. short story long. thanx!

Post by **Q45tech** » Wed Mar 22, 2006 1:54 pm

I'm not really an automotive technican........tech stands for technical something I used starting 7 years ago and never changed my HANDLE.

Post by **Solini** » Wed Mar 22, 2006 2:22 pm

I use Chevron 93, and the most miles I've got off a full tank was 340. And that was all highway driving

Post by **captainluigi** » Wed Mar 22, 2006 2:30 pm

ok,do not intend to hijack this thread. however that's most interesting but only creates more Q,s than A,s (not a pun). so; this knowledge covers a greater spectrum of just infins. my question is still on the table only expanded. do you have this knowledge just wandering around in your head or an enormous reference library dedicated to automotive engineering?

What kind of MPG do you get?

What kind of MPG do you get?

Re: What kind of MPG do you get? (BlueC)

Re: What kind of MPG do you get? (BlueC)

Re: (BlueC)

Re: (Jesda)

Re: (jamesmost)

Re: (Q45tech)

Re: (elwesso)

Re: (Q_SHIP)

Re: (Q45tech)

Re: (Q45tech)

Re: (elwesso)

Re: (Q_SHIP)

Re: (Q_SHIP)

Re: What kind of MPG do you get? (BlueC)

Re: (squeefoo)

Re: (Falkdesigns)

Re: (Q_SHIP)

Re:

Re: Re: (Q45CALIBER)

Re: What kind of MPG do you get? (BlueC)

Re: What kind of MPG do you get? (BlueC)

Re: What kind of MPG do you get? (captainluigi)

Re: What kind of MPG do you get? (Q45tech)

Re: What kind of MPG do you get? (Q45tech)

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