Fuel and water statistics

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Isuzu

Date Fuel (Litres) Kilometres Distance Km Water used Ltr Water/Km Pints and Miles
13/03/2007   139133        
15/03/2007 10.76 139205 72 2 0.028 1Pint / 11.97Miles
18/03/2007 10.65 139259 54 1.5 0.027 1Pint / 12.78Miles
21/03/2007 10.65 139320 61 1.5 0.025 1Pint / 14.39Miles
24/03/2007 10.65 139420 100 2 0.02 1Pint / 17.7Miles
27/03/2005 10.65 139500 80 0.5 0.006 1Pint / 57 Miles
29/03/2007 10.65 139563 63 0 0 n/a

Suspected air leak. All connections retightened. Bubbler tank starts operating at 1500rpm, confirmed by listening.

Date Fuel (Litres) Kilometres Distance Km Water used Ltr Water/Km Pints and Miles
01/04/2007   139630 67 1.5 0.022 1p / 15.92m
03/04/2007 21.3 139702 72 1 0.013 1p / 25.5m

09/04/2007 Experiment temporarily suspended due to suspected air leak at inaccessible joint.

After a couple of months with the new pipe work fitted I have come to the conclusion that the system gives slightly better fuel consumption but only on a longer distance. The reason is very simple, the exhaust does not get hot enough when travelling locally as I do but for anyone who uses a vehicle on  long distance driving I think that the fuel saved would be worth it.

I'll continue to use the system to see what happens over a period of about 6 months as the weather improves and the ambient temperature increases