Help with crappy mpg

eparker202

Veteran Member
Joined
Jul 8, 2011
Location
NH
TDI
2015 Beetle Convertible 6MT TDI
PLEASE do not drive below the speed limit! Some folks like to get where they're going in a reasonable amount of time. If you wanted to drive like that you should have bought a Prius. Driving should be fun and if you're driving like an old woman while you have one eye on the MFD trying to maximize your MPG, you're not having fun and neither are the people in the line of cars behind you.
This is the most retarded thing I have ever heard. Are you F***ing serious? Most highways are 45 min 65 max. Maximum means do not exceed this speed. Remember in 1979 or somewhere around there when the feds dropped the national speed limit to 55? Well that was to save money on gas. If you drive between 40-60 mph you will get the best mpgs. If you drive less than 65 mph your chances of not only surviving a crash are increased tremendously but your chances of avoiding said crash are also better. So, PLEASE do not drive above the posted speed limit! Anyways, whats the fun in driving 70-80 mph, if you are going to say driving 60 is boring, then you better be driving 100+ because anything below that is boring compared to triple digit speeds. Also, try taking some turns those are even more fun.
 

Conrad -JSW

Veteran Member
Joined
Dec 9, 2011
Location
Northern Illinois
TDI
2012 JSW DSG
Yes, I'm F***ing serious.

Reading for comprehension, ever hear of it?

Where did I say to drive above the posted speed limit?

It was 1974 and if you'd like to read a little about how much fuel was saved by the federally mandated 55mph speed limit, here you go.

http://en.wikipedia.org/wiki/National_Maximum_Speed_Law

In case you didn't notice, that law was repealed.

As for driving at triple digit speeds and having some fun in the twisties, I save those for my motorcycle. :rolleyes:
 

JettersTDI

Veteran Member
Joined
Oct 5, 2011
Location
California
TDI
2012 Jetta TDI
This is the most retarded thing I have ever heard. Are you F***ing serious? Most highways are 45 min 65 max. Maximum means do not exceed this speed. Remember in 1979 or somewhere around there when the feds dropped the national speed limit to 55? Well that was to save money on gas. If you drive between 40-60 mph you will get the best mpgs. If you drive less than 65 mph your chances of not only surviving a crash are increased tremendously but your chances of avoiding said crash are also better. So, PLEASE do not drive above the posted speed limit! Anyways, whats the fun in driving 70-80 mph, if you are going to say driving 60 is boring, then you better be driving 100+ because anything below that is boring compared to triple digit speeds. Also, try taking some turns those are even more fun.
+1^

To me, fun doesn't start until I hit 120mph. That's when adrenaline rush kicks in. Also, driving a manual is fun enough for me. And if I really wanna have some fun with my car, I'd drive it in the track (Buttonwillow Raceway i.e)
 

Conrad -JSW

Veteran Member
Joined
Dec 9, 2011
Location
Northern Illinois
TDI
2012 JSW DSG
Well, to each his own. I don't worry about what people think. And please don't tell me what I should or shouldn't drive. I always put more than enough time to where my destination is so I don't have to worry about speeding. If you're one of those speed-demon, then more power to you. Plus, of course I'm not one who stays in the left lane to block the traffic. I know where my place is, so thanks for pointing that out.
Jeeze, where did I say that I'm a speed-demon? WHERE? If driving at the speed limit makes me a speed-demon then I guess that's what I am.

For the record, I didn't tell you what you should or shouldn't drive. I said PLEASE don't drive below the speed limit. That's a request, see the difference?
 

JettersTDI

Veteran Member
Joined
Oct 5, 2011
Location
California
TDI
2012 Jetta TDI
How do I know? I NEVER text and drive, never. As for how I know, I just look around at the non attentive drivers as I pass them.
Ok..just like you don't talk on the phone while driving, right? The OP wanted some advice on the best MPG. And you're here criticizing people for driving their car for the best mpg and implying those that drive below the posted limit should get a Prius. Sounds to me that you're the one that needs comprehension. The OP is not interested on your smart antics. Read the subject matter first before posting your ideas.
 

JettersTDI

Veteran Member
Joined
Oct 5, 2011
Location
California
TDI
2012 Jetta TDI
Jeeze, where did I say that I'm a speed-demon? WHERE? If driving at the speed limit makes me a speed-demon then I guess that's what I am.

For the record, I didn't tell you what you should or shouldn't drive. I said PLEASE don't drive below the speed limit. That's a request, see the difference?
Buddy, I didn't say you are. Why don't you start a thread, like "How-To-Get-To-Point A and Point-B Faster By Driving Like A Maniac" and leave this thread alone for those with better sense of advice.
 

P0234

Veteran Member
Joined
May 18, 2011
Location
NoVA
TDI
11 JSW
P0234,

Try some of the techniques outlined in this thread... I think you'll see a pretty substantial increase in fuel economy. I noticed 10-20% better on my typical commute around NoVA, but it takes a lot of concentration and looking ahead. Playing with the MPG display has turned into a game for me... better than speeding tickets! :eek:
Yeah, I can get higher, it just turns into diminishing returns. The hop fro 40-45 isn't bad, 45-50 is where your speeds really have to drop.
 

eparker202

Veteran Member
Joined
Jul 8, 2011
Location
NH
TDI
2015 Beetle Convertible 6MT TDI
I hope you don't get a ticket doing the speed limit.
Actually, you can get a speeding ticket for driving at the posted speed limit. These limits are set for "ideal driving conditions". Now, would a cop actually ticket someone for doing this, doubt it.

LOL
 

NC 2011TDI

Member
Joined
Jun 7, 2011
Location
North Carolina
TDI
2011 Jetta - REVO Tune, 6speed manual, 2011 Jetta Sportwagen TDI DSG, 2012 Passat TDI DSG
I actually have a 2011 Manual Sedan and a 2011 automatic sport wagon. I notice that at 70mph the RPM on the automatic is 2-300 higher, my sedan gets 40-46 highway and the wagon averages 35ish on long trips. The wagon also has 52" cross bars that i leave on all the time, they whistle a little but it is such a pain to take them off.
 

veedubfreak

Veteran Member
Joined
Aug 8, 2011
Location
Denver, Colorado
TDI
2011 golf
Or at the very least, stay well in the right lane. It's the imbeciles doing 60 in a 75 riding the left lane that's a problem.

I never understood why it's so hard for people in this country to comprehend. Drive right; pass left. Once you pass, move back over to the right. It's not rocket science.

2 reasons.
Overinflated sense of importance in the US
No real training to get your license.

What pisses me off are the people who think it is their job to make you drive the speed limit. Never mind that most highways are artificially lower so that cops can enforce the revenue stream, but because that sign says 55 and they passed a car 10 miles back, they have the right to sit in the left lane AS THEIR GOD GIVEN RIGHT AS A MURKEN!

That being said, never use neutral, it leaves you no way of getting on the power again if you need to make an emergency maneuver, and it also requires the car to spend fuel to idle. If your foot is off of the throttle, the car is using no fuel because the engine continues turning due to being connected to the wheels. Neutral lowers your mpg.
 

amstel78

Veteran Member
Joined
Jan 24, 2012
Location
Shohola, PA
TDI
2012 Golf TDI [buyback completed 14/1/2017] 2006 S65 AMG
2 reasons.
Overinflated sense of importance in the US
No real training to get your license.

What pisses me off are the people who think it is their job to make you drive the speed limit. Never mind that most highways are artificially lower so that cops can enforce the revenue stream, but because that sign says 55 and they passed a car 10 miles back, they have the right to sit in the left lane AS THEIR GOD GIVEN RIGHT AS A MURKEN!

That being said, never use neutral, it leaves you no way of getting on the power again if you need to make an emergency maneuver, and it also requires the car to spend fuel to idle. If your foot is off of the throttle, the car is using no fuel because the engine continues turning due to being connected to the wheels. Neutral lowers your mpg.
America - the best country to live in as long as you can put up with her awful drivers. I guess we can't have our cake and eat it too.

As for neutral; I've coasted down long hills before in neutral and the MFD shows fuel economy increasing faster that way instead of leaving it in gear. I agree with you on the safety aspect though.
 

VeeDubTDI

Wanderluster, Traveler, TDIClub Enthusiast
Joined
Jul 2, 2000
Location
La Conner, WA
TDI
2018 Tesla Model 3: 217,000 miles
Depending on conditions, neutral will give you better fuel economy because it doesn't reduce your momentum. While coasting in gear uses no fuel, it also slows you down unless you're going down a hill and don't want to gain speed - engine braking.
 

MonsterTDI09

TDIClub Enthusiast, Veteran Member
Joined
Jul 3, 2009
Location
NoVa/NJ
TDI
2010 Jetta DSG/ up keep on 2009 Jetta DSG 2006 Jetta Pag 2 in North SEA Green
My guilty pleasure is passing people on hills and looking at their faces as I go by doing 80... :D


I'm guilty of this:D TDI love hills.I was going through WV to last year fest, no body pass me going up 13% grade mountain this with two bikes on the back.
 

MonsterTDI09

TDIClub Enthusiast, Veteran Member
Joined
Jul 3, 2009
Location
NoVa/NJ
TDI
2010 Jetta DSG/ up keep on 2009 Jetta DSG 2006 Jetta Pag 2 in North SEA Green
I actually have a 2011 Manual Sedan and a 2011 automatic sport wagon. I notice that at 70mph the RPM on the automatic is 2-300 higher, my sedan gets 40-46 highway and the wagon averages 35ish on long trips. The wagon also has 52" cross bars that i leave on all the time, they whistle a little but it is such a pain to take them off.

Starting with 2010 model the M/6 got a little tall 6th gear.The 09 year they were both the same.
 

JarHead

Veteran Member
Joined
Apr 18, 2011
Location
Gardner Kansas USA
TDI
2002 TDI Golf Gone But not forgotten. 2000 Jetta TDi Kerma Tuned
PLEASE do not drive below the speed limit! Some folks like to get where they're going in a reasonable amount of time. If you wanted to drive like that you should have bought a Prius. Driving should be fun and if you're driving like an old woman while you have one eye on the MFD trying to maximize your MPG, you're not having fun and neither are the people in the line of cars behind you.
There isn't enough words on how dumb this post is. Conrad I shake my head at you. For one who are you? Oh wait I know who you are...You're the TDICLUB Forum Troll. Where do you get off tell people to drive the speed limit. I'm pretty sure this is still the USA and we are all FREE to choose how and what we do with our driving habits. I drive for the most part 5 miles below the speed limit (in the right lane). Please god don't get behind me going 70 and cry about me going 65.


Learn that Freedom to do as you please is a birth right in the the USA, dealing with the consequences of your actions on the other hand is the hard part. You being from the Land of Lincon should know that better then most. Shame on you Sir.



Jarhead
Semper FI
 

JettersTDI

Veteran Member
Joined
Oct 5, 2011
Location
California
TDI
2012 Jetta TDI
That being said, never use neutral, it leaves you no way of getting on the power again if you need to make an emergency maneuver, and it also requires the car to spend fuel to idle. If your foot is off of the throttle, the car is using no fuel because the engine continues turning due to being connected to the wheels. Neutral lowers your mpg.
I think any competent driver would know exactly what to do in any given situation. It's not hard to shift back in gear during coasting ,in nuetral. I don't coast when there's heavy traffic. It all comes down to good judgement and common sense. Coasting in neutral, in my opinion, gives me the easiest way to achieve better fuel economy; and vice versa during coasting in gear. I use both You just have to know when to apply it.

The way I see it:

<1k rpm= less consumption than >1k rpm.

The engine is still using fuel to complete a cycle, is it not? And the higher the rpm is the greater the fuel is being delivered. So, what makes you think that it uses zero fuel?
 

740GLE

Top Post Dawg
Joined
Aug 19, 2009
Location
NH
TDI
2017 Alltrack SE; Totaled 2015 Passat SEL, BB 2010 Sedan Man; 2012 Passat SE w/ Nav,
The way I see it:

<1k rpm= less consumption than >1k rpm.

The engine is still using fuel to complete a cycle, is it not? And the higher the rpm is the greater the fuel is being delivered. So, what makes you think that it uses zero fuel?
because fuel injection has been mettered and logged with the VCDS and posted on this site many times, the ECU knows the volume each injection.

When the engine is in over run (coasting in gear) the ECU isn't calling for any fuel.

What's slowing you down at that point is all parasitic loss of the engine/drivetrain and rolling resistance.
 

Conrad -JSW

Veteran Member
Joined
Dec 9, 2011
Location
Northern Illinois
TDI
2012 JSW DSG
There isn't enough words on how dumb this post is. Conrad I shake my head at you. For one who are you? Oh wait I know who you are...You're the TDICLUB Forum Troll. Where do you get off tell people to drive the speed limit. I'm pretty sure this is still the USA and we are all FREE to choose how and what we do with our driving habits. I drive for the most part 5 miles below the speed limit (in the right lane). Please god don't get behind me going 70 and cry about me going 65.

Learn that Freedom to do as you please is a birth right in the the USA, dealing with the consequences of your actions on the other hand is the hard part. You being from the Land of Lincon should know that better then most. Shame on you Sir.



Jarhead
Semper FI
First of all Jarhead, let me thank you for your service to this fine country. Unless you're a poser, then shame on you sir.

Second, if you don't mind, please show me where I told anyone to do anything. You must be referring to where I said, "PLEASE do not drive below the speed limit!" You do understand the difference between a request and a demand/order/telling someone to do something right? If not, please say so and I'll explain the difference in simple language since there seems to be some confusion on this subject in some of the folks posting in this thread.

Perhaps if I explained why I made that request you might see my point of view. In my daily commute I drive mostly 2 lane highways, with 55 mph speed limits, and the route that I take has very few opportunities to pass other slower moving vehicles. As a result of this, very often, I'll be in a long line of cars behind some person driving below the speed limit for whatever reason. I can say, with almost 100% certainly, that these slower moving drivers are not driving that way to save fuel. Can you imagine how frustrating this might be to a person wanting to actually drive the speed limit?

I spent my time in the Army and I certainly know what freedoms I have and those that I do not. One of the freedoms that I do have is to express my opinions on a public message board. Are you telling me that I do not have that right? You sir may exercise your freedom to ignore my posts.

Lastly, did I call anyone names and tell anyone how dumb their posts are as you did? No, I don't believe that I did...
 

JettersTDI

Veteran Member
Joined
Oct 5, 2011
Location
California
TDI
2012 Jetta TDI
First of all Jarhead, let me thank you for your service to this fine country. Unless you're a poser, then shame on you sir.

Second, if you don't mind, please show me where I told anyone to do anything. You must be referring to where I said, "PLEASE do not drive below the speed limit!" You do understand the difference between a request and a demand/order/telling someone to do something right? If not, please say so and I'll explain the difference in simple language since there seems to be some confusion on this subject in some of the folks posting in this thread.

Perhaps if I explained why I made that request you might see my point of view. In my daily commute I drive mostly 2 lane highways, with 55 mph speed limits, and the route that I take has very few opportunities to pass other slower moving vehicles. As a result of this, very often, I'll be in a long line of cars behind some person driving below the speed limit for whatever reason. I can say, with almost 100% certainly, that these slower moving drivers are not driving that way to save fuel. Can you imagine how frustrating this might be to a person wanting to actually drive the speed limit?

I spent my time in the Army and I certainly know what freedoms I have and those that I do not. One of the freedoms that I do have is to express my opinions on a public message board. Are you telling me that I do not have that right? You sir may exercise your freedom to ignore my posts.

Lastly, did I call anyone names and tell anyone how dumb their posts are as you did? No, I don't believe that I did...
I believe you did here.

Yes, I'm F***ing serious.

Reading for comprehension, ever hear of it?

Where did I say to drive above the posted speed limit?
No need to go further. You can go back to your previous posts and decide.

As for your daily drive frustrations, my advice is:

a. learn some patience
b. allow some extra time to your destination

or

c. use the passing lane, if there's one.
d. all of the above

Driving slower than the limit is one thing, but the thing that frustrates me a lot are those who use their brakes excessively, even for no reason. But there's nothing I can do but pass them.

End of discussion. Back to the original topic.
 

JarHead

Veteran Member
Joined
Apr 18, 2011
Location
Gardner Kansas USA
TDI
2002 TDI Golf Gone But not forgotten. 2000 Jetta TDi Kerma Tuned
I believe you did here.



No need to go further. You can go back to your previous posts and decide.

As for your daily drive frustrations, my advice is:

a. learn some patience
b. allow some extra time to your destination

or

c. use the passing lane, if there's one.
d. all of the above

Driving slower than the limit is one thing, but the thing that frustrates me a lot are those who use their brakes excessively, even for no reason. But there's nothing I can do but pass them.

End of discussion. Back to the original topic.

+1 For that.

Okay my wife's JSW Mpg changes a lot. Some days 40 some days 50. I have seen is as low as 35 around town. Both of us drive 30+ miles a day. Her car now has 9800 on it and the Mpg's are just now beginning to come up to more of a constant number. She shifts between 2000 and 2200 Rpm pretty constant. (and yes she loves driving a Manual). Just be give it some time to work it self out. If you are still having problems when you take it in for your first service I would let them know then. Don't baby the motor run it threw the gears and power band. The break-in is very important on the CR engines. Good Luck


JarHead
Semper FI
 

JarHead

Veteran Member
Joined
Apr 18, 2011
Location
Gardner Kansas USA
TDI
2002 TDI Golf Gone But not forgotten. 2000 Jetta TDi Kerma Tuned
First of all Jarhead, let me thank you for your service to this fine country. Unless you're a poser, then shame on you sir.

Second, if you don't mind, please show me where I told anyone to do anything. You must be referring to where I said, "PLEASE do not drive below the speed limit!" You do understand the difference between a request and a demand/order/telling someone to do something right? If not, please say so and I'll explain the difference in simple language since there seems to be some confusion on this subject in some of the folks posting in this thread.

Perhaps if I explained why I made that request you might see my point of view. In my daily commute I drive mostly 2 lane highways, with 55 mph speed limits, and the route that I take has very few opportunities to pass other slower moving vehicles. As a result of this, very often, I'll be in a long line of cars behind some person driving below the speed limit for whatever reason. I can say, with almost 100% certainly, that these slower moving drivers are not driving that way to save fuel. Can you imagine how frustrating this might be to a person wanting to actually drive the speed limit?

I spent my time in the Army and I certainly know what freedoms I have and those that I do not. One of the freedoms that I do have is to express my opinions on a public message board. Are you telling me that I do not have that right? You sir may exercise your freedom to ignore my posts.

Lastly, did I call anyone names and tell anyone how dumb their posts are as you did? No, I don't believe that I did...

I should have know ARMY OF ONE...
 

tcp_ip_dude

Veteran Member
Joined
May 14, 2010
Location
Cape Fear area, NC
TDI
2010 Jetta TDI Sedan
because fuel injection has been mettered and logged with the VCDS and posted on this site many times, the ECU knows the volume each injection.

When the engine is in over run (coasting in gear) the ECU isn't calling for any fuel.

What's slowing you down at that point is all parasitic loss of the engine/drivetrain and rolling resistance.
This is true. Easily observed with Scangauge II or VCDS. 0 (zero) GPH showing when coasting in gear.
 

Sinetv

Veteran Member
Joined
Feb 8, 2012
Location
Atlanta, GA
TDI
2012 JSW 2013 Audi Q7 TDI
I am getting the same mileage, I have 9000 miles, DSG, not reaching more than 34mpg 50/50 driving. I just making 430 miles on tank, and drive like veteran even not reaching 3 rpm, never drive more 65 miles per hour. Maybe becouse I have 19 inc wheels on car.
 
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