Quote:
Originally Posted by mcbota
Is this ScanGauge so important even fi I have board computer? It helps so much? Is there anu source for the best price, including shippping worldwide, more specific to Romania?
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IMO, sort of. If you want to aim for 80% load, only a SG (etc) can do it. I'm just learning to speak diesel and so far, I've found the 80% method to work (hasn't worked for my on petrol cars in the past). If you drive low in the RPM band it's easy to overdo load (which can lead to ovaled cylinder bores) on a TDI without the load display. On a drive by wire car the ECU should prevent damage but that depends on how conservatively they've set it. My understanding is that my alloy block 2.5 TDI cannot be rebored/ sleeved so I'm being cautious (and I'm hoping it will last me 20 years!).
On the other hand, if your factory display can show both AVG and instant consumption simultaneously (I like having both - if my instant is worse than my AVG, I lift my foot if possible), you can just keep the revs a little (~200rpm) higher and make do. With the SG I can cruise at 1100rpm, load is usually around 70, so it doesn't take much of a hill for load to reach 100. Without SG I'd cruise at ~1300 to have a little more of a safety margin (6 speed).