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Post Info TOPIC: fuel economy
KJB


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RE: fuel economy
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Possum3 wrote:

Both SIL and her daughter have the Suzuki and run regular petrol - both only do small trips, cars run perfectly - Personal opinion lower octane doesn't make that much difference. Both cars have a pretty good rap, so personal choice for comfort would have to be decider.

 

When using the lower Octane fuel the Engine Management will sense "pre- ignition" (can/will cause catastrophic damage ) via its "knock sensors" and  retard the timing  - this then protects the engine but results in less power.



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peter67


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Some may hate his sense of humour but John Cadogan does an excellent series of automotive videos, just watched one on fuel ratings that tackles the old myth about running 98 ron because some people still insist that you get better mileage when using it. Also his vid on leaving your light weight d-max/triton etc stock standard raises many interesting points.

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yobarr


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peter67 wrote:

Some may hate his sense of humour but John Cadogan does an excellent series of automotive videos, just watched one on fuel ratings that tackles the old myth about running 98 ron because some people still insist that you get better mileage when using it. Also his vid on leaving your light weight d-max/triton etc stock standard raises many interesting points.

 His videos on the effects of using a WDH,and common misunderstandings, certainly illustrate a few truths too! Cheers



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Mike Harding


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peter67 wrote:

Some may hate his sense of humour but John Cadogan does an excellent series of automotive videos

 I've only watched a few minutes of his stuff, mainly from links on this site, but I quite like his presentation style :)



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yobarr


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Mike Harding wrote:
peter67 wrote:

Some may hate his sense of humour but John Cadogan does an excellent series of automotive videos

 I've only watched a few minutes of his stuff, mainly from links on this site, but I quite like his presentation style :)

Agreed,Mike.Particularly interesting to me is the video about the workings of a WDH,and their misuse by "uninformed dicks" (his words) who have little understanding of the physics involved.A WDH does NOT change towball weight.Never has.Never will. Cheers

P.S Did the down force applied to the 'A' frame by the WDH contribute to this unfortunate incident? 

8851D23A-5C42-4104-8537-B916715DEAB4.png



-- Edited by yobarr on Monday 2nd of August 2021 03:00:12 PM

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peatop


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my son gets 28km/l but if he is in a parking zone like the wesgate or monash fwy he can get 30+ ofc he drives a hybrid, but on a more serious note I drive a 2002 commodore and on my trip up to northern NWS with my kayak on the roof I managed and avg 10.9 l/100 and towing my camper trailer back from where I purchased it I went the hilliest windiest way possible and managed to get the economy really blazing at 11.5 l/100 very supersizing im the other side of Geelong and the trailer was from Lilydale and I went via the rural northern rout. hmm followed googles directions.
I find using the cruise control certainly help my fuel economy but not in hilly, windy, or wet conditions and certainly it would not be so good towing a heavy van
I also used to drive a truck to deliver wood approx 300km round trip, I used more fuel on the return trip empty than the trip down, I could never work that out.

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Aus-Kiwi


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I guess under load the turbo is supplying more air and better burn ? Diesels work better working hard !! Combustion wise !!

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Peter_n_Margaret


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Aus-Kiwi wrote:

I guess under load the turbo is supplying more air and better burn ? Diesels work better working hard !! Combustion wise !!

 

Better?

When they work "hard", there is black smoke from the exhaust. That black smoke is unburnt fuel - wasted energy.

Diesels work best with a constant load well within their power band.

Peter



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OKA196, 4x4 'C' Class, DIY, self contained motorhome. 960W of solar, 400Ah of AGMs, 310L water, 280L fuel. https://www.oka4wd.com/forum/members-vehicles-public/569-oka196-xt-motorhome
 

 
littledick


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Petemox wrote:

 Hi 

I am concerned about the amount of diesel I am using towing a 2.5tonne caravan. I have the MY21 Isuzu cab chassis automatic. We recently drove down from Qld to Vic and recorded our fuel usage all the way. We are averaging 18ltrs to the 100k. I have heard some people say that they get as good as 14.5, but I dont see how that could be possible. I dont drive fast and let the car sort out what gear it should be in most of the time. However, there are times it is reluctant to shift up from 4 so I stick shift it into 5. 

 

Wondering what others are getting with similar rigs and what they might be doing to get better if they are.

 

cheers.

 

Peter

I wouldn't be concerned Peter. I tow a 3.0T van with my 2017 auto Wildtrak. Depending on the terrain I can get down to about mid 16L per 100ks. Average though around the 17/18 mark. Usually tow in 4th sequential and to date, never needed anything lower than 3rd. Keep revs up and light on the peddle. wink

 



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littledick


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yobarr wrote:
Mike Harding wrote:
peter67 wrote:

Some may hate his sense of humour but John Cadogan does an excellent series of automotive videos

 I've only watched a few minutes of his stuff, mainly from links on this site, but I quite like his presentation style :)

Agreed,Mike.Particularly interesting to me is the video about the workings of a WDH,and their misuse by "uninformed dicks" (his words) who have little understanding of the physics involved.A WDH does NOT change towball weight.Never has.Never will. Cheers

P.S Did the down force applied to the 'A' frame by the WDH contribute to this unfortunate incident? 

8851D23A-5C42-4104-8537-B916715DEAB4.png



-- Edited by yobarr on Monday 2nd of August 2021 03:00:12 PM

Reminds me of the foldup draw bar I had on 2 vans.aww

Dick. 



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