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Thread: Diesel Vs Petrol

  1. #21
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    I've got a V8 and I can't stand driving deisels, that's not to say they are useless, I just think they are the engine of satan and should be banned from the roads.

    I get 15L / 100km, my old man in his TD5 gets 10L / 100km. His is better for towing and has more torque. But it sounds like crap and comes complete with a james bond smoke screen when he floors it.

    There's probably a good reason why trucks are diesel, if petrol engines were cheaper to run and maintain they would use petrol engines.

  2. #22
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    If a TD5 is smoking, it's probably being starved of air. Check the aircleaner and intake hoses.

  3. #23
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    The truck comparison is no comparison in my opinion

  4. #24
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    Quote Originally Posted by jmkoffice View Post
    Why don't trucks, diesel electric trains, buses, big generators etc use petrol engines?

    Is it true the Renault, Peugeot and VW diesel cars have a comsumption of around 5L/100 km? Do the petrol models have similar mileage?
    __________________________________________________ _____________

    My son has a VW passat diesel and he is getting 5.6l / 100 on the open road Brisbane to Townsville is 1400 ks one fillup is required near end of trip
    About 2 yrs ago I took a LWB Ford transit Van ( Diesel ) from Sydney to Townsville could have made the trip with one refueling from menory I think the fuel tank cap was about 85 Lts

  5. #25
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    Quote Originally Posted by jmkoffice View Post
    Why don't trucks, diesel electric trains, buses, big generators etc use petrol engines?

    Is it true the Renault, Peugeot and VW diesel cars have a comsumption of around 5L/100 km? Do the petrol models have similar mileage?
    My Bro. has a 2litre Pug 307, 6spd auto and gets 5L/100 without trying on a trip. I just did the Cape trip in my D3 TdV6 and got 11.8L/100 overall. We did all the rough tracks where possible. With bullbar, kaymar and 2nd spare, long range tank and beer, all up 3100kg. Met some guys with 4.8litre Patrols on the way and when I asked about fuel consumption, was told 700km from 210litre tank(30L/100)

  6. #26
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    You blokes might be interested in what a VW director has just said.
    Volkswagen talks down diesel in Aust - New Zealand's source for motoring news on Stuff.co.nz

    Regards Philip A

  7. #27
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    Just to add to that, a friend has just been in UK and hired a 1.8 litre Vectra.
    He was surprised to get 44MPG overall during his rental. That is about 5.5-5.8 AFAIR.
    So the latest petrol engines are also very economical, and the latest VW Tsi technology has even more promise.

    I guess Land Rover needed a cheapo engine for the D3 and so used the Exploder engine which is a derivative of the 3litre "Essex" which started back in the 60s ( shades of V8). Once again a symptom of Land Rover not having much money.
    But the $10000 price difference between the petrol and diesel sure buys lots of petrol.
    I was idly pondering which D3 and theoretically I am still undecided. The retained value % s seem similar from what I have seen.
    Regard sPhilip A

  8. #28
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    Quote Originally Posted by PhilipA View Post
    But the $10000 price difference between the petrol and diesel sure buys lots of petrol.
    I was idly pondering which D3 and theoretically I am still undecided. The retained value % s seem similar from what I have seen.
    Regard sPhilip A
    We had our lease company run "Total Lifetime Cost" figures for the petrol and
    diesel D3's prior to intial purchase. Over 3 years with estimated 35,000km per
    year 15% heavy towing and considering service costs, estimated resale etc.

    The premium you pay on a diesel is not expected to be fully recouped on
    resale and ceratinly accounts for the increased consumption of the petrol D3.
    Given the heavy towing (and four kids on board) the numbers came out line
    ball, but we went the diesel as I thought it would tow better.

  9. #29
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    Quote Originally Posted by PhilipA View Post
    You blokes might be interested in what a VW director has just said.
    Volkswagen talks down diesel in Aust - New Zealand's source for motoring news on Stuff.co.nz

    Regards Philip A
    It sounded to me like a PR guy trying to boost sales of the TSi and the DSG. Afterall, the VW tdi's sell themselves.
    Here they sold more than 50% tdi's in the first year they offered them.
    44mpg in an astra is good for a petrol but very poor for a diesel, $25k gets you a brand new diesel kia which can do 90mpg on a flat road at 80km/h.

    Solar challenge results anyone?

    Those doing cost comparisons on petrol vs diesel should take into account the miserable resale of petrol V8 powered rangerovers. A 12 year old P38 goes for about $10k here. The diesel ones go for about double, occasionally have double the km on them and originally sold for a lot less.

  10. #30
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    I have owned a 300tdi which went belly up and now have a V8D2 purchased at low kms and what then was reasonbale price. All the bad press over the td5 scared me off plus 6mths ago they were $5-6K more than a V8. Now TD5 D2 have dropped in price (as have V8D2s)..... boy I feel like an idiot pulling up at a servo having only managed to get 20mpg at best on local town driving and then pumping in $110 worth of petrol. I'm in a queue for lpging but somehow am not feeling good about the loss in range with lpg. (I have chosen to replace whole of petrol tank with lpg tank which fits in place of petrol tank. I didn't want to lose space.) When I have the $ I will put in the conversion for the diff lock (1999-2000) model.

    What are the best tips in tuning a V8 so as to get better economy or is it just that I have a lead foot?
    2010 110 Crew Cab Deefa
    Mittagong NSW 2575

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