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rubystargoats

Fuel milage not as good as hoped

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Dan, says here you don't need one.

https://www.boat-ed.com/washington/?campaignid=232927819&adgroupid=24515663179&keyword=washington state boaters license&gclid=CjwKCAiA99vhBRBnEiwAwpk-uKFfnkOmXKmbN0vm9v5ipPyARGzO3qquWZc07iVPTtsvqpgAyyrubRoC7pAQAvD_BwE

 

"All operators born on or after January 1, 1955, must have the Washington Boater Education Card to operate a vessel.... "

 

:lol:

 

Edited by Woodenhead

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  Yeah that is so irritating, I didn't miss it by very much.....  Liz was even closer at 4   1     55

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I'd like offer some advice but I have no idea what your car is (other than it's a TDI) or what your driving environment is like.  If the car is an MKIV with an ALH and a manual transmission then there's no reason why it would get anything under 43mpg in all but the worst conditions (folks running 70mph AND towing another MKIV over hills manage to get 43mpg!).
 

I have had up to four MKIV TDIs at one time, all four door, manual transmission Golfs (one was a 6spd, but, sadly, I had to let it go- too many cars!).  With the exception of a new addition, as it's two new to have had a chance, I've rung up 800+ mile tanks (hand calculated) in each.  My own Golf has averaged 50.7mpg over the course just under the 66k miles I've had it.  New car has a Malone Stage 3 tune with T4 nozzles (will replace with DLC1019s when I get a chance), while the others have Malone Stage 2 tunes with DLC520 nozzles.  I don't beat my cars, but I also don't hesitate to hammer on them either.  I've never rang up a tank at less than 42.98mpg (only 3 times under 45mpg- all when I first got the car, before resolving many issues).

 

I just rang up 52.5mpg on my car, running winter tires.  Wife put on a lot of the miles (I am not able to drive for a while yet), but she also puttered around town a bit as well.  A good 80% is highway, which is why I drive these cars (it's the right tool for the job).

 

Check for dragging brakes.  If it's wet outside take a look at the wheels to see if there are any that look really dry compared to the others (usually only the inner portion of the wheels should be dry).  I've noted a good 3mpg drop from hanging brakes.  Diesels just power through, it's hard to really feel dragging brakes.

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Stock, not stock?

 

What is your driving environment/conditions like?  Mostly city, short hops, or highway, longer trips?  Are you towing your truck with it?  Do you drive with your foot planted all the time?

 

I'll refrain from further guessing.  Input/data is essential for troubleshooting (especially virtually- I can't plug my VCDS in via Internet😉)

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 It is not stock. It is the one I got from Ben, I don't remember what mods.  Mostly trips less then 13 miles, it's been cold, and it takes it most of the trip just to get up to temp.

Edited by rubystargoats

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2 hours ago, C Paul Go said:

I blame Ben......:banana:

 

I blame me too.... now what???:right:

  • Haha 1

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18 hours ago, rubystargoats said:

Mostly trips less then 13 miles, it's been cold, and it takes it most of the trip just to get up to temp.

 

I'd be real curious what it would get on a longer road trip, stretch its legs a bit. I can't help but think it would be up higher where you want it to be. Only way to help your short commute is to retire I guess. :right: 

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18 hours ago, rubystargoats said:

 It is not stack. It is the one I got from Ben, I don't remember what mods.  Mostly trips less then 13 miles, it's been cold, and it takes it most of the trip just to get up to temp.

 

And those 13 miles are what kind?  I live off a major highway, in which case my cars can get up to proper operating temps within 10 miles (at 5 miles thermostats are opening up- about 140 degrees).  If it was city miles then it ain't going to happen.  Blocking off the radiator/grill area can help for cold temps and short trips: I've used pipe foam over the grill- quit using it because, before I got my garage, my geese would bite and pull off the foam!

 

Any CEL (Check Engine Light)?  Can't recall if a bad CTS (Coolant Temperature Sensor trips a CEL); but, a bad CTS can hammer down MPGs.

 

A degraded MAF (Mass Air Flow sensor) will also beat down MPG: performance degradation is usually noticeable.

 

I'm a big supporter of having something like a Scan Gauge or Ultra Gauge in my cars.  These allow me to monitor actual temps, boost, mpg and other stuff.  Also can display codes and clear them.

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Just the stock gauges with EGT and boost gauges added, no check engine light. It has gotten lower as the weather turned colder but runs good and pulls ok so maybe when the weather warms up a bit I will see an increase. It still gets better than the Ford Contour so not too worried about it. Might be a trip to pick up Robs truck when he gets home but not sure.  My truck doesn't  do well in the winter either unless it was plugged in for a few hours to warm up first.

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Yes, this colder weather does have an effect, but so far I don't hear of any reason for why your numbers should be this low: if you were getting 40mpg right now I'd still being saying that this was low.

 

Scan it with VCDS.  If you could make it my way I'd be happy to check it.

Edited by DieselBound
Ugh, incomplete sentence. Hey, look! a squirrel!

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1 hour ago, skyking said:

My trips are 16 miles, and I get around 42~44 at the very best. Of course mine is far, far from stock :)

 

Yeah, and I have this suspicion the Go pedal has lots of carpet time😁  Bugs don't get as good of mileage, though that's more on out and out cruising.  But... your Fuelly number of 47.2 suggests that you're not exactly an MPG bottom dweller.

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Yes, winter and winter fuel puts a dent in MPGs, no doubt, but I still get over 45 mpg:

 

http://www.fuelly.com/car/volkswagen/golf/2000/uhoh/333519/fuelchart

 

Mostly the same with my wife's previous car (one of the later big dips, can't recall which one, was from a dragging brake):

 

http://www.fuelly.com/car/volkswagen/golf/2000/uhoh/333520/fuelchart

 

36mpg is on the lowest end of any MPG report I've ever run across: and that person's car had issues (not sure what they were).

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Well maybe in late April or May I will have time to look at a few things and maybe even see if someone local can run scans.

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  Well finally took a bit of a trip to Portland and back, got 44 MPG so not too bad.

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