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The Pub For General Automotive Related Talk |
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#1 | ||
FF.Com.Au Hardcore
Join Date: Feb 2008
Location: Perth, Northern Suburbs
Posts: 4,924
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One of the sites I worked on, they converted the trucks to burn their oil.
ie such that the oil was continuously being replenished and never changed. Obviously that works best in a diesel. Could you implement that on a petrol engined car? Would the engine management cope/ adapt? How would you implement it? Where would you take the oil feed from, bottom of sump or bottom of oil-filter? How would it be injected? Presumably it would clog existing petrol injectors. Could it be rigged to spray into in the manifold at WOT? And what would the effect be? The advantage on the fleet was burning the oil inplace of diesel, but mostly to avoid the cost of changing and disposing of the oil. Not sure, but I imagine the filters were still changed, as they would still have caught all the dirt and particulates. |
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#2 | ||
Experienced Member
Join Date: Sep 2006
Location: Australasia
Posts: 7,564
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In my opinion sounds illegal and contravenes EPA laws.
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#3 | ||
FF.Com.Au Hardcore
Join Date: Feb 2015
Posts: 2,064
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#4 | ||
Kicking back
Join Date: Dec 2013
Location: Western sydney
Posts: 8,576
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That sounds strange but also the only petrol motor I can think of that burns oil by design is a 2 stroke petrol motor. And also diesel (I'm going to use that as my sort of example as its closer to oil then petrol) burns differently then petrol so there are big differences in how a diesel and petrol motor need to be constructed to get the most out of the different fuel. Compression ratios and fuel pressure being a factor but I'm not all over how stuff like that works. You probably could somehow inject a mix of sump into the manifold with petrol and the car would probably run but probably not as well as on petrol alone. And isn't 5L of engine oil more expensive then 5L of petrol?
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#5 | ||
5.0 means business
Join Date: May 2007
Location: Busselton, Western Australia
Posts: 1,021
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A pretty worn out engine would burn it's own oil but only to it's detriment.
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#6 | ||
Kicking back
Join Date: Dec 2013
Location: Western sydney
Posts: 8,576
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Shot rings or a cracked piston would also lose compression so that's a tad different to oil injection (yeah I know that's a 2 stroke boat or bike thing but it seems closer to the ops query then running a shot motor)
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#7 | ||
FF.Com.Au Hardcore
Join Date: Mar 2006
Posts: 3,910
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My old man was a firm beleiver in this. Not once in his entire life did he change the oil in his smokey old XA fairmont.
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#8 | ||
FF.Com.Au Hardcore
Join Date: Nov 2006
Posts: 1,127
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Some car companies are well ahead in this oil burning scenarios - direct injected engines especially.
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#9 | ||
Boss 335
Join Date: Jan 2006
Posts: 4,330
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Once saw somewhere on the interwebs a device (industrial heater?) that burns any sort of oil you give it, even waste engine oil, and it would put out some serious heat. Once toyed with the idea after experiencing a bill shock of $2k after moving into a new house
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#10 | ||
Regular Member
Join Date: Aug 2008
Posts: 2,890
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Seems like a lot of trouble to avoid changing the oil once in a while. The cost to change the oil is fairly small. Maybe they just want to keep the trucks moving 24/7? I’m with the OfficeManager; it sounds dodgy.
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#11 | |||
FF.Com.Au Hardcore
Join Date: Feb 2008
Location: Perth, Northern Suburbs
Posts: 4,924
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Quote:
Plus, I think the diesels could burn it quite well, especially in minute concentration. In theory, if properly tuned, even a petrol engine should be able to clean it up with a Cat, but in practice not sure how. NB: On another site we got rid of all our waste oil, included reclaimed, in ANFO ![]() Last edited by PG2; 22-05-2018 at 11:34 PM. Reason: No need for the comments. I'm starting to get sick of either deleting or editing your posts. |
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#12 | ||
Falcon RTV - FG G6ET
![]() Join Date: Mar 2007
Location: In Da Bush, QLD
Posts: 31,367
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In 1924, my old man went out to western NSW to work on a large sheep station as a Jackaroo.
The owner only brought Ford Model T's, he brought a new one every few years and gave his old one to the manager. The manager gave his old one to the overseer and the overseer gave his old one to the outstation boss. In turn the outstation boss gave his old one to the Jackaroos. In town on a Saturday night, they reckoned you could always here the Jackaroos coming to town form a pretty fair distance as the big ends were slapping pretty well by the time they got to drive it. You see, the Boss always said, it had oil in it when I brought it and I don't see why it doesn't have oil in it now.
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#13 | ||
FF.Com.Au Hardcore
Join Date: Jun 2005
Posts: 3,633
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My Suzuki T500 burns all its oil ..
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#14 | ||
FF.Com.Au Hardcore
Join Date: Jan 2006
Posts: 2,125
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I think a much better option is to have the old oil squirt into the rear tyres when stopped at lights so that you can safely burn it off during take off.
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#15 | ||
Au Falcon = Mr Reliable
Join Date: Sep 2009
Location: North West Slopes & Plains NSW
Posts: 4,076
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Some trucks have two strokes (diesels) too.
![]() cheers, Maka
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#16 | ||
Cabover nut
Join Date: Aug 2015
Location: Onsite Eastcoast
Posts: 10,841
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Yes my 2 stroke 6V53 Detroit, I guess if the injector rack sticks in the wide open position it would burn oil. (and everything else)
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#17 | ||
Wirlankarra yanama
Join Date: May 2006
Location: God's Country
Posts: 2,103
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A small amount of two stroke oil per tank of diesel helps with the injectors. But purposely adding oil to the fuel with the intent of simply burning it away ... you do realise pistons have oil and compression rings to specifically stop oil and the combustion process from interacting.
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#18 | ||
Cabover nut
Join Date: Aug 2015
Location: Onsite Eastcoast
Posts: 10,841
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I use my used engine oil on the hardwood fence posts to stop termites and them drying out.
Three of my trucks use used filtered canola oil mixed with diesel to produce B50-B90 depending on the season.
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heritagestonemason.com/Fordlouisvillerestoration In order that the labour of centuries past may not be in vain during the centuries to come...... D. Diderot 1752
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#19 | ||
Regular Member
Join Date: Jul 2006
Location: Tatura Victoria
Posts: 405
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My work ute, a 2002 VU commodore has burned it's oil off since new
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#20 | ||
FF.Com.Au Hardcore
Join Date: Jan 2005
Location: Wollongong
Posts: 3,111
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mitsubishi have been doing this for years, been behind an early magna or pajero?
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#21 | ||
FF.Com.Au Hardcore
Join Date: Oct 2008
Location: Victoria
Posts: 7,854
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Not sure of the benefits, happy to be proven wrong but:
- If its using the engine oil you would need to continuously top up the engine oil, of risk running low. - surely dirty engine oil in the fuel wouldn't be efficient, and would soon clog a fuel filter. - oil filters would still need changing wouldn't they? - having working in servicing trucks, there's a lot more checks & greasing that are done as part of the oil change -so it still needs a service. - Cant be good for emissions almost certainly illegal.
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#22 | ||
FF.Com.Au Hardcore
Join Date: Oct 2008
Location: Victoria
Posts: 7,854
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Craptivas & Cruzes are taking over where the Magnas left off
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#23 | ||
Mad Scientist!
Join Date: Jan 2005
Location: Newcastle
Posts: 2,840
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#24 | |||
FF.Com.Au Hardcore
Join Date: Feb 2008
Location: Perth, Northern Suburbs
Posts: 4,924
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Quote:
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#25 | ||
Experienced Member
Join Date: Sep 2006
Location: Australasia
Posts: 7,564
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#26 | ||
*barks incessantly
Join Date: Jun 2016
Location: SA
Posts: 1,556
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Just stick to 2 strokes next time.
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#27 | |||
Mad Scientist!
Join Date: Jan 2005
Location: Newcastle
Posts: 2,840
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Quote:
Toyota's answer is to remove the PDF and EGR system. This is happening now on all mine sites(Private land) as well as yodas driven in cities (public). |
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#28 | |||
Experienced Member
Join Date: Sep 2006
Location: Australasia
Posts: 7,564
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Quote:
Just because Toyota advises removal does not mean they are correct and in the end the owner of the vehicle/s is responsible for any breaches of EPA laws, I still stand by my previous post. You must remember cars manufacturers must abide government rules regarding emission laws, any modifications to these are prohibited. |
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#29 | |||
Mad Scientist!
Join Date: Jan 2005
Location: Newcastle
Posts: 2,840
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Quote:
On public land however...... |
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#30 | ||
*barks incessantly
Join Date: Jun 2016
Location: SA
Posts: 1,556
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They burn oil in Formula 1 as a power additive.
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