I suppose it's down to each individual car and I can see a little difference between regular diesel and V-Power but not much. Adding 2-EHN I see a lot more difference in torque at low rpm, less diesely noise and more power. Not sure about economy, maybe +0.5mpg. I am adding 3-8 times what premium diesel would contain 0.3-0.4% instead of 0.05-0.1%.
It's cheap enough to try. 1l is like £12 and 5l is £32. You can always try some and then decide. Buying 5l and adding 0.3% is about 2.6p/l increase to your fuel cost, less that difference to premium diesel.
Also tried in friends 2l BMW 320 with suspected ECT failure as glow plug light only comes on for a little while , much less than expected at this time of year and then engine runs very ruff for a while as glow plugs are off. Adding 2-EHN improved it considerably.
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Currently 8less
2011 Q7 S Line 3.0TDI, 2016 Tesla Model S 90D
8 history:
2006 A8 Sport 4.2TDI quattro SOLD,
1997 S8, reached end of life with gearbox failure
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