First 900 mile tank!- VW TDI
 

I hit 913.8 miles today on a 13.814 gallon fill-up for 66.15 MPG in my 2001 VW Golf TDI. Most miles and best MPG for a single tank for me so far. Ive had the car since April and I love it. 70 MPG is the goal!

Very cool! Looking forward to seeing that. Have you modified your car at all? What's the EPA on that?

I think its rated at 38/44. My car is stock with 135k miles. It needs new shocks and struts so when I do that Im going to lower it slightly. I maxed out the tire pressures (51 psi), drive slow, and coast in neutral whenever possible. I havent implemented PnG yet, but I might in certain scenarios soon.

I would like to do some subtle aero mods at some point as well. Underbelly smoothing and a grille block, wiper delete, etc. My commute is 95% highway, so better aero is what I need.

I hate you tdi people. Only because I don't have one :D

Do you have a fuel log for it??

Awesome tank!

Haha. After some reading, I feel the same way about Insight people :/
I keep one on Fuelly.com. I could transfer it over here tho I guess.

Golf TDI (Volkswagen Golf) | Fuelly

Nice fuel log! You obviously can drive...

Well thank you. Im going to try a couple things this new tank. Theres a short stretch of surface streets I can PnG until I get to the highway, and the final stretch of side street until I get work is perfect for about 1/2 mile of EOC. I can glide all the way into my parking spot no problem. EOC 1/2 mile/day, 6 days/week, for 3 weeks will make about .4 MPG difference. WAHOOO! lol

Congratulations on your 900+ mile on a tank! Several years ago I had a TDI Beetle and hit that mark as well. Driving style was one part - and the Vag-Com was another important part. Do you have a Vag-Com? Also, you may already know this but there is an egr mod and a crankcase vent breather mod that will help the intake stay clean and not get choked off.

~CrazyJerry

Eh. Insights. I love their FE...but...I'm not sure I'll ever get over the whole hybrid thing. I will take a good gas engine or almost any turbodiesel over a hybrid 100% of the time. Personal thing.

great tank for sure. i suggest getting an Ultragauge but some prefer the scangauge. it allows me to adjust to road conditions without affecting FE.
i don't think wiper delete will help. pretty much a dead zone that low on the windshield.
my drive is 95% highway.

Nice tank!

I'm going to look at this TDI today:

2001 VW TDI BEETLE

I don't know what P & G would do to a diesel, but I'd definitely EOC up to every light. Even with a mostly highway commute, if you EOC, your next post will be "Broke a thousand miles on this tank"
I increased my mileage by like 10 mpg just by shutting mine off at lights, but my commute has lots of lights.

I dont. Thats a good idea tho. Ill do a bit a research. I plan on keeping the car forever so it would be a smart investment.

I think I totally agree with you. I also have room for my 2 big dogs when I fold down the rear seats. Such a practical vehicle.

D bYes. Instrumentation is on my list of needs. That should probably be my next purchase. Probably a good call on the wiper delete being silly, too.
Please please pleaseee hold out for a 5 speed! That does look like a nice car, tho. Also, with these cars documentation of service is important, especially timing belts. Its a must do item every 80k miles and its a $800 job. If they dont have paperwork for it being done, negotiate it into the price and get it done like yesterday. The guy I got mine from worked with me on the price because of this. It worked out great in the end.

Hmmm. Maybe I will try to EOC and bump start in 4th gear a bit this tank to experiment. That might get me to the 70 mpg mark!

Lol, it's mainly gonna be driven by my wife. Basically it's a peace offering since I won't let her commute in her Explorer V8 and I've been making her carpool with me in the Black Widow

I'm also looking at a 5-speed 2001 Gen-1 Insight this afternoon for myself, if I can low ball the guy down enough. The IMA is dead, but the car is immaculate. I actually test-drove it about two months ago, but he wanted 2800 bucks for it then, and I didn't buy it. He hasn't sold it yet, and just dropped his price to 2300 bucks. I texted him an offer of 1500 bucks this morning, I'll have to see if he bites

Wish me luck!

Possibly a good way to kill the turbo. You don't really need to EOC to a stop in a diesel as it will DFCO down to idle.

that is a confusing statement. are you telling him not to EOC in gear? i should hope he doesn't do that already.
are you also saying the TDI will go into DFCO, in gear, coming to a stop, with the engine running and be better at saving/using less fuel than EOC? hhhmmmmm. either i am confused about all this or i'm doing something wrong. i get 60 consistently each fill up and i EOC all the time. should i leave it on, coast in gear, idle at the light and save more?

Wish I could get that out of my MK6 common rail.

EOC is the most efficient way possible, so is leaving it off at lights.

However, tuning an engine off just after a high load pulse is a good way to run the turbo bearings dry and ruin the turbo. The rule of thumb is to wait 30seconds, this makes EOC'ing a turbo all but impossible. This is especially true for TDi's that are on boost much more often than petrol turbos.

If someone has EOC'd their TDi for 100K+ miles and the turbo is still fine, I'd like to hear it. As it stands, I'll just be content to EOnC my turbos.

Wow 900mi is awesome!