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120 petrol vs 150 diesel

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  • 120 petrol vs 150 diesel

    Had a few mates suggest I upgrade to 150 series diesel. Struggling to see why, my 120 series petrol guzzles a bit, around 14l/100 around town, 17 towing, but I see lots of folks getting 10 around town and 15 towing in 150 series diesel. Does not seem worth the extra outlay, extra service cost, higher fuel price for only that margin better fuel economy? Enlighten me perhaps.

  • #2
    not to mention the diesels have had their fair share of injector problems, cracked pistons etc. I've got a petrol 150 and love how quiet and smooth it is.
    Prado 150 V6 2010 Kakadu, Factory towbar, GME TX3420, P3 Brake Controller, ABR Battery tray, D34 Optima battery (Drivers side), Fullriver AGM 100Ah, Rear Anderson plug, Rear internal power outlets, Baintech rear battery monitor, Kaymar Wheel on Door bracket, GME UHF Antenna, Sand Grabba mats

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    • #3
      Do your sums, the high maintenance costs of the diesel pretty well outweigh its benefits over the petrol IMO..

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      • #4
        I'd stick with what you have unless there's a specific reason to upgrade?

        The minimal fuel saving, and I do mean minimal as diesel is more expensive (here atleast) and extra maintenance will negate much of the fuel savings, then you add in purchase price, onroads and depreciation and you will spend more to upgrade.

        If you've got a big trip coming up, towing a 2T van around Aus or something, then it can be worth looking at in terms of total trip costs and comfort etc.

        Petrol 150 here, minimal towing (just loads of wood for now til the track car is being used again) and I see mid 13's on my regular commute (i live out of town in the hills) and have seen a best of 12.5 on the trip to bathurst and back (1000ks round trip for me). KO2s, steel arb bar, winch, dual batteries, 2" lift, all of which cost you economy.

        Service costs and general concern about the car is low as there's not much to do/go wrong.

        Upgrade because you want a nicer/newer/safer car etc, but don't upgrade to "save money" that's a false economy.
        Last edited by 'Dan'; 06-11-2019, 08:20 AM.

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        • #5
          Maybe ask "ya mates"

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          • #6
            He did, they said upgrade. He's asking to be enlightened as to pros and cons from people who are not his mates.

            10/10 helpful post...

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            • #7
              Upgrading just for fuel economy can’t be justified in most cases. However there are other reasons to upgrade from a 120 to a 150, depending on what model 120 you have there are many improvements in a 150, e.g. radar cruise control, lane departure warning, blind spot monitoring, more air bags etc. perhaps a bit more info on what you have and what features are important to you would help make any replies more specific to your needs.

              Lee
              02 VX, Toyota Alloy Bar, IPF 900XS with 50 watt HID, 50 mm Lift- Lovell Shocks n Springs, Safari Snorkel, large Pioneer tray, Pioneer In-dash, Alpine roof mount DVD screen -handled the Simpson and Innaminka roads, now with a little TRD blower & Unichip

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              • #8
                spot on lethal

                Dan the OP doesn't state why his mates suggest the upgrade

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                • #9
                  Originally posted by GEEEXL View Post
                  spot on lethal

                  Dan the OP doesn't state why his mates suggest the upgrade
                  Given his entire post was about fuel economy, that would be my guess.



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                  • #10
                    not sure how people get around 14l/100km around town.. I get 16.2 -16.7L/100km on a 40% Hwy and 60% city start/stop short trips (<5km); Mostly Hwy with even with family of 4 and 100kg lugguage will however get down to 12.8L/100km; The worst is towing our 1350kg loaded trailer- 19L/100km (Hwy) to 22L/100km slow gravel rd (30k/hr-50k/hr)


                    mine is a stock except 2 inch lift with All Terrain tyres.... and i calculate my fuel consumption by filling up to brim and zeroing my trip metre... i have a grande which shows average fuel consumption but its always 1-1.5L/100km less than actual.

                    Absolute worst is very short trips (<3km/hr) and start stop traffic.

                    i did a bit of maths based on my driving around town and only do extented touring trips a few weeks a year - the benefit of diesel is minimal (in cost terms).

                    My conclusion is that you get a diesel if (1) you do a lot of towing work; (2) very remote travel and a lot of long distance travel; and (3) only if get the diesel new or with a well known proper maintenance history;

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