[cmavr8]

Hi everybody!
I have a 2008 VW golf (rabbit in the US) with a 1.4l tsi 103kw engine. Transmission is auto, DSG, 6 gear, and I have a couple of questions. If anybody can be kind enough to read/answer any or all, or provide links I'll be grateful.

So, I'm interested in fuel saving techniques (dah!) but I don't want to either turn the engine off or shift to neutral. I'm starting a 2000km road trip in a few hours... And I wanted to test new techniques.

1.I have trouble finding my engine's bsfc. I can only find a newer engine's plot, which turns off 2 out of 4 cylinders. Mine doesn't do that.

2. I was just wondering how efficient pulse and glide with engine on can be.

My sequence will be:
(situation: Cruising at highest gear, engine rpms ~1500)
- switch to the appropriate gear to bring the engine to the lower end of its most efficient area (say 2000rpm)
- accelerate until the engine reaches the high end of the area (say 3000rpm)
- switch to highest gear possible (usually 6th) and let it roll
- when speed goes down, repeat...

Will this be better than steady throttle (not speed) cruising with the same average speed?

3. If my engine's efficient area is 2000-3000rpm, does it make sense to manually shift during an acceleration from stop to say 120kph?

So during acceleration, instead of letting the transmission change to the next gear as soon as possible, I could change gears so that I always keep the engine between 2-3k rpms. Will this be any good?


Thanks a lot for your attention!
Chris