I have a 1.9 which is the 102 engine and I can get from scotland to cornwall [550miles] on a full tank - well, until the light comes on which means I have ten litres left. That is with me driving at a solid 80-85mph on motorway. I think that works out about 33ish mpg. If you take it easy then it goes a lot further! Hope that helps.
Often recognized as the engine that spawned an interest in diesel tuning for thousands of European tuners, modifiers, and car fanatics, the humble VAG 1.9 PD provided a solid and highly adaptable platform for those seeking big power. The 1.9 TDI found its way into a multitude of VW Group products, including VW, Audi, Skoda, and SEAT.
The engine range of the Passat Alltrack consists of two 2.0 litre TDI with outputs of 103 kW/140 hp & 125 kW/170 hp and two petrol engines, 1.8-litre producing 118 kW/160 hp and 2.0 litre TSI producing 155 kW/207 hp.
Displacement alone is not a good indicator of power output, particularly for turbocharged engines. The mapping is probably the most important factor, which determines fuelling, boost and injection timing. My 1.9 PD 130 can be remapped to at least 170 simply by changing the software. The 1.9 is an 8 valve engine, whereas the 2.0 is 16 valve.
The real 1.9 TDi makes it's peak power at 3750-4000rpm, and peak torque at 1900rpm. This mod reaches peak power and torque at 6000 rpm. This makes the engine extremely underpowered and lacking low rpm torque (something this engine should excel at). If you look online for "darkside developments dyno" they have a ton of dyno charts for VW diesel
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is the 1.9 tdi a good engine