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  • diesel/lpg conversion

    Was wondering has anyone had lpg added to there diesel and if so benifits or regretes thanks

  • #2
    Generally there are power benefits from doing this however the 1kz is so reliable I personally wouldn't screw around with it. Each to their own of course.
    2009 120 V6 Auto. 265/70/17 Goodyear Silent Armours. Bilsteins and Kings Springs.

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    • #3
      I agree with Tassie tiger
      I have a 120 diesel I wouldn't put gas on because ...... 1 it only to supliments the diesel not a replacement. 2 the cost is about $5k. 3 for that you will get an LPG bottle not much bigger than your BBQ bottle (27ltrs). 4 this will give increase power also increase heat. 5 you should change the valves, guides and stems to helite, designed for heat. 6 this would cost an extra $2k <> My last Prado was on gas $4k to repair after all the so called "economical" motoring.
      For me gas is great !!! for the barbie.

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      • #4
        Gday myoilburner

        Quote: I have a 120 diesel I wouldn't put gas on because ...... 1 it only to supliments the diesel not a replacement.

        Answer: I cant speak for the 1KZ but wouldn't the same also apply to installing a Chip/ Bigger exhaust/ Extractors or Snorkel?

        Quote: 2 the cost is about $5k. 3 for that you will get an LPG bottle not much bigger than your BBQ bottle (27 ltrs)

        Answer: The conversion cost me $3,700 less the $2,000 gov rebate which equals to $1,700 & i carry a mega 36Ltr LPG BBQ tank which is accompanied with the 180ltr of diesel.

        Quote: 4 this will give increase power also increase heat.

        Answer: It actually runs cooler with less black smoke but an intro of more diesel "Will" increase more heat and black smoke.

        Quote: 5 you should change the valves, guides and stems to helite, designed for heat.

        Answer: Running cooler and only a 15% mix max on full turbo boost with the diesel there is no need!

        Quote: 6 this would cost an extra $2k <> My last Prado was on gas $4k to repair after all the so called "economical" motoring.

        Answer: I'm guessing your last Prado was a V6 not a diesel and maybe not set-up correctly & both the newer V6 & D4D's are more robust than there older predecessors.

        Here is a link with full details from my experience and too date i am now over 130k and still no probs.
        http://www.pradopoint.com/showthread...l=1#post311548

        Also read this thread as it spans out into a productive and healthy debate if read from the beginning.
        http://www.pradopoint.com/showthread...l=1#post318223

        I hope that "Dock" does not mind me leading a link to his experience with LPG on diesel also.
        http://www.pradopoint.com/showthread...l=1#post191100

        another link worth reading!
        http://www.triggertravel.com/4x4/lpg-conversion/

        Hope it clears a few speculations!

        Cheers

        PS. car Manufactures "CAN NOT" void warranty on a custom part by law (ACCC) unless they can prove it to be "the" contributor to a mechanical failer....
        (On 1 January 2011 the Trade Practices Act 1974 was renamed the Competition and Consumer Act 2010. Australian Competition and Consumer Commission).

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        • #5
          Skywalkerrun
          Very interesting comments, yep you are right my last Prado was indeed V6 petrol. Sounds like you are impressed with your conversion. Do you get getter economy or are you looking for better performance. Also the price you paid sounds pretty good. Where has the LPG tank been fitted. Your comments have dispelled some of the "urban miths" for me. Now I might have to thik twice re: LPG

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          • #6
            Gday myoilburner

            Quote myoilburner: yep you are right my last Prado was indeed V6 petrol.

            Skywalkerrun answer:It wasn't just the V6 but the V6 3.4 which is no comparison the V6 4.0

            Quote myoilburner: Do you get getter economy or are you looking for better performance.

            Skywalkerrun answer: Yes i do get better fuel economy and definitely better performance. (Last week i drove from Umina Beach to Noosa Heads (Queensland) and back without having to re-fuel with diesel but i did put an additional $10 of LPG in the tank. I drove speed limit (110kmh) but mostly 10kmh over road speed limit.

            Quote myoilburner: Also the price you paid sounds pretty good. Where has the LPG tank been fitted.

            Skywalkerrun answer: The LPG tank is installed on the drivers side between the chassis rail and gearbox so i still keep both my diesel tanks which gives me 180ltr.

            Quote myoilburner: Your comments have dispelled some of the "urban miths" for me. Now I might have to thik twice re: LPG

            Skywalkerrun answer: I do believe there "is" alot of "urban miths" running LPG on diesels as i have now been running mine since 28-10-08 and had 30,120km on the clock when installed. To date i now have driven 137,231km to date!.. that equals a total of 107,111km "with" LPG and still genuinely very happy

            I to date have not seen any diesels on LPG but i know they are out there.

            This link below updates my past conversation on this very subject.
            http://www.pradopoint.com/showthread...l=1#post311548

            I personally would read this whole thread from beginning to end. (Was a fun debate! Lol).
            http://www.pradopoint.com/showthread...l=1#post317809

            This link explains the performance "I" get with LPG and diesel running together.
            http://www.pradopoint.com/showthread...l=1#post331455

            @ ########## ..... Heeey ... We haven't had a good healthy debate for ages!! how ya goin!! Lol

            Quote ##########: I do not recommend installing any gas conversion on the 1KD-FTVs. The reason for this is that there is enough problems with the fuel delivery system as it stands already without modification into something that has only been around for a few years in diesel conversions.

            Answer skywalkerrun: a few years to me translates to "roughly three?.....Or there about's!" when actually it has been around for a Long time... Also!! When you say Quote: I do not recommend installing any gas conversion on the 1KD-FTVs. Un-Quote: On what basis of your knowledge can you back-up on your "I do not recommend"... I have walked the walk with over 100,000km under my belt with Diesel/LPG now and on my experience i still genuinely love it.

            Quote ##########: As far as warranty goes with Toyota Australia on using auto gas they are pretty strict.

            Answer skywalkerrun: When i had LPG fitted to my rig i also got the "Warranty void"!! (still got the letter but was not phased by it due to knowing my rights and Toyota "CAN-NOT" void any warranty by law unless they "can" prove that a custom mod of any sort has contributed to any mechanical failure...

            Here are a few links below.. Most of the links below are for electronically controlled LPG injection (I have heard it is more superior and effective than the system i have but i chosen the gas regulator activation via boost pressure only due to its simplicity and the fact that it does not impose on any of the electronics of the engine management at all....

            #1 http://www.torquegas.com.au/html/die...nversions.html

            #2 http://www.dieselgasaustralia.com.au/Faq.aspx

            #3 http://www.webwombat.com.au/motoring...conversion.htm

            #4 http://www.sydneylpgcentre.com.au/di...nversions.html And this link http://www.sydneylpgcentre.com.au/technical.html

            #5 http://www.autogasonestop.com/diesel.htm Old link from 2001

            #6 http://www.just4x4sales.com.au/lpg_f...el_engines.htm

            #7 http://www.triggertravel.com/4x4/lpg-conversion/

            #8 http://www.ultimategas.com.au/diesel-gas-conversions/

            #9 http://www.ecoshot.com.au/main.html This is the system i chosen for its simplicity.

            Cheers
            Last edited by SWR; 06-08-2012, 02:57 AM.

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            • #7
              I have had my D4D on LPG/Diesel since new in 2007. No problems so far and appreciable increase in power and torque. I also have an EGT guage and have been able to monitor temps both on and off gas, on and off the TRD chip, so I can measure EGT with standard engine, chipped engine, LPG engine, LPG/chipped engine and intercooler fan on and off, intercooler spray on and off. Outcome - no real differences in EGT. When under severe load - eg up hill in sand, it still goes up pretty high and switching the various options on and off really does not drop things in any appreciable way except I loose significant power. Mind you on anticpated severe load I turn on the intercooler spray to help out a little and cool the charge air down as much as possible.
              Cheers.
              DocK
              2007 Prado VX D4D, With a lot less options lately!

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