Fauvay
Well-known member
I will preface this by saying there are a lot of variables in this analysis and not a lot of miles to smooth out fluctuations. That said...
In my recently acquired 2000 Golf 5 speed, I've noticed the following over the last 3 tanks of diesel that I've filled up. Prior to that, I really wasn't watching mileage.
From earliest to most recent:
- 36.4 MPG. Nearly all city driving. Minnesota winter. Ambient air temperature starts
- 38.5 MPG. Nearly all city driving. Minnesota winter. Frost heater newly installed for entire tank of fuel.
- 42.6 MPG. Nearly all city driving. Minnesota winter. Right foot mod.
I've just replaced my MAF and am expecting a slight bump for this next tank. The previous owner was running a K&N filter, so I suspect a fouled MAF might be robbing a little efficiency. I will post how it turns out.
For full-disclosure, I do not fully top off until I see diesel, so I can't say for sure I have exactly the same amount of fuel in the tank for each trip. Regardless, interesting numbers and certainly trending in the right direction.
In my recently acquired 2000 Golf 5 speed, I've noticed the following over the last 3 tanks of diesel that I've filled up. Prior to that, I really wasn't watching mileage.
From earliest to most recent:
- 36.4 MPG. Nearly all city driving. Minnesota winter. Ambient air temperature starts
- 38.5 MPG. Nearly all city driving. Minnesota winter. Frost heater newly installed for entire tank of fuel.
- 42.6 MPG. Nearly all city driving. Minnesota winter. Right foot mod.
I've just replaced my MAF and am expecting a slight bump for this next tank. The previous owner was running a K&N filter, so I suspect a fouled MAF might be robbing a little efficiency. I will post how it turns out.
For full-disclosure, I do not fully top off until I see diesel, so I can't say for sure I have exactly the same amount of fuel in the tank for each trip. Regardless, interesting numbers and certainly trending in the right direction.