z1234567890
Member Since: 30 Nov 2015
Location: Dubai
Posts: 160
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Fuel Consumption with 5W-40 engine oil |
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I usually use 5W-30 and engine fuel consumption is between 16.9-18L/100KM
now I tried to use 5W-40 and engine fuel consumption is jumping to 20-21L/100KM
It's 2005 v8 HSE model, running for 229900 kms already
Anyone has similar experience? Want to share some input to optimize the engine performance?
Trying to reduce this crazy fuel consumption
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3rd Jun 2018 6:54 pm |
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kajtzu
Member Since: 10 Aug 2017
Location: Helsinki
Posts: 6538
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Are you sure you don’t have a stuck piston on a caliper or two...? Or brake shoes stuck? There are many things which can contribute to excessive fuel consumption and not all of them are in the engine. My consumption was reduced from (at worst) 16.8 L/100 km to 13.5 L/100 km with shoe maintenance and replacement of a caliper.
Also, since you’re in the desert - have you checked how your air filter looks like or do you replace it regularly?
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3rd Jun 2018 6:56 pm |
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z1234567890
Member Since: 30 Nov 2015
Location: Dubai
Posts: 160
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air filter is clean and replaced regularly
you meant brake shoe?
Will check that one later on..... thanks for sharing
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3rd Jun 2018 7:03 pm |
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kajtzu
Member Since: 10 Aug 2017
Location: Helsinki
Posts: 6538
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Brake shoes (EPB) stuck on either or both rear wheel can make the car use more fuel. Since it’s quite warm in UAE you might notice it immediately as tires and wheels are warm to the touch otherwise, too. Here north I noticed it kind of by accident since tire was very warm and it was below freezing outside.
Brake caliper pistons, if they’re stuck, would also do the same. One piston on the left front wheel had rusted and gotten stuck; the rubbery parts had let water through and that eventually led to the undesired end result.
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3rd Jun 2018 7:08 pm |
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kajtzu
Member Since: 10 Aug 2017
Location: Helsinki
Posts: 6538
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FWIW, last time I changed oil I used Shell Helix Ultra Professional AF 5W-30. Before that it was Mobil 1 5W-30. My climate is different from yours, though.
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3rd Jun 2018 7:12 pm |
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pjm-84
Member Since: 04 Oct 2016
Location: Hampshire
Posts: 2406
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Well I did 170 miles back from Wales to Southampton this afternoon and the lieometer finished on 26.9mpg.
Filled up in Abergavenny on the way back and tank now on 3/4. V8 likes the hotter weather.
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3rd Jun 2018 10:19 pm |
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turborange
Member Since: 12 Mar 2014
Location: Sheffield
Posts: 56
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I had a sport v8 come through our premises today and I couldn’t help myself over the last 750 miles it had averaged 28mph and 23.9mpg this is better than my diesel!!!!!! Btw I have new calipers and front bearings current
D3 SE 2.7 tdv6
D2 TD5 Td5 inside tuned
RRC 200tdi front and rear locking diffs on 35's
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5th Jun 2018 10:15 pm |
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z1234567890
Member Since: 30 Nov 2015
Location: Dubai
Posts: 160
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10.16093 km per litre, that is cool
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6th Jun 2018 6:10 pm |
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lynalldiscovery
Member Since: 22 Dec 2009
Location: Maidstone
Posts: 7274
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If you have a read up on oil, the differences to fuel mpg with the thinner fuel efficient stuff are miniscule, but nowadays thats the way its all going.
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6th Jun 2018 6:13 pm |
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kajtzu
Member Since: 10 Aug 2017
Location: Helsinki
Posts: 6538
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I guess this thread will also end in V8 owners implying the petrols are superior to diesels...
I converted the mpg to l/100 km and that is a truly awesome figure.
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6th Jun 2018 6:15 pm |
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lynalldiscovery
Member Since: 22 Dec 2009
Location: Maidstone
Posts: 7274
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Whenever I see any land rover doing 55mph I always smile as I overtake as you just know its a petrol
Of course if its a series thats different!
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7th Jun 2018 5:57 am |
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plocker
Member Since: 14 Mar 2016
Location: Preston
Posts: 828
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You keep going overtaking us until either your turbo, crankshaft, oil pump housing, EGR valves fail then we will sail back past, and sounding 8) doing it.
Tortoise and the unreliable hare. 05 V8 HSE Bonatti Grey
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7th Jun 2018 12:00 pm |
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pjm-84
Member Since: 04 Oct 2016
Location: Hampshire
Posts: 2406
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Don't forget about glow plugs and cambelts.
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7th Jun 2018 12:32 pm |
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plocker
Member Since: 14 Mar 2016
Location: Preston
Posts: 828
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And injectors and high pressure fuel pump............ 05 V8 HSE Bonatti Grey
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7th Jun 2018 12:36 pm |
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kajtzu
Member Since: 10 Aug 2017
Location: Helsinki
Posts: 6538
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Split intercooler hose.
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7th Jun 2018 3:52 pm |
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