That seems like very good fuel economy to me, especially with the low gear and occasional low range work.
Below Nav Bar
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Oil Change - overfilled it
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Last week, I had to go to Canberra for the day, and filled up with fuel there (much cheaper than at home). Overall consumption for 650 km (with the extra 1 L of oil in the sump), including 350 km of rough stuff was 8.3 L/1100 km. The dashboard readout on the way home was around 7.8 L/100 km, so maybe the extra oil was causing some more drag in the engine. The dash readout of consumption is very close to what I actually get when I fill up, so maybe there has been an improvement. I have gone to 10W-40 oil instead of 15W-40 which I used over summer. I think that makes a difference, but the comment above was about overfilling the sump, rather than oil viscosity.
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Originally posted by erad View PostI switched the oil from 15W-40 to 10W-40, and I was hoping for slightly better consumption. Time will tell...
During normal running, you've changed from a 40 weight oil to a 40 weight oil.NT Platinum. DiD Auto with 265/70R17 ST Maxx, Lift, Lockers, Lockup Mate, Low range reduction, LRA Aux tank, bull bar, winch, lots of touring stuff. Flappy paddles. MMCS is gone!
Project: NJ SWB. 285/75R16 ST Maxx, 2" OME suspension, 2" body lift, ARB 110, 120l tank, bullbar, scratches, no major dents. Fully engineered in SA. NW DiD & auto in place - a long way to go....
Scorpro Explorer Box
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Yes NJ - I think you're right with that. The problem here is that in winter, it is COLD. Damn - I am sure it is getting colder! I reckon there would be at least a 40 Deg C difference in oil temp between summer and winter, and therefore the oil viscosity at operating temperature in winter will be slightly higher for the 15W-40 oil. Probably not that much difference, but I will use the 10W-40 through this winter and then replace it with 15W-40 for summer because I will most likely be towing my caravan in both seasons for probably 40% of the time. I don't like the idea of 10W-40 for a really hot day, towing my caravan.
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