Thread: Petrol VS diesel?

Originally Posted by trout1105

I take it that ALL of the detractors of the tojo 4.5 V8 actually personally

own one or have owned one to be able to "Qualify" their comments

I can qualify my comments firstly on the basis of published power and torque figures and the fact that my brother purchased a new single cab GXL in 2010 and we have been away a bit together - for sure not my vehicle but a vehicle i know pretty well. Compared to my RRS always used more fuel in the same circumstances, my bro was unimpresssed with power and torque so had it chipped and a larger exhaust put on it - still unhappy at its lack of power (for the engine size) - (and this is the basis of most complaints - power and torque is poor for a 4.5 litre engine).

He had enough after 3 years and went to a 200 series TDV8 - same 4.5litres but mores reasonable power and torque for the engine size but still only around the same a a 3.0 SDV6.

The single turbo 4.5 TDV8 only has around the same power and torque as a 2.7 TDv6 - says a lot and the TDV6 is not an overstressed engine - yes it has issues but so does the TDV8.

All I know is that I have been zipping along today on the M1 and 100 to 110kph and averaging in the high 6's l/100k in the Triton. 1650rpm at 100kph in 6th and quiet. I'm liking that. Engine hasn't freed up either yet. Only has 800ks on it. Cheers

Originally Posted by ozscott

All I know is that I have been zipping along today on the M1 and 100 to 110kph and averaging in the high 6's l/100k in the Triton. 1650rpm at 100kph in 6th and quiet. I'm liking that. Engine hasn't freed up either yet. Only has 800ks on it. Cheers

My daughter bought a new Triton twincab a few months ago and she also says it runs on the smell of an oily rag, She Loves it.

Originally Posted by ozscott

All I know is that I have been zipping along today on the M1 and 100 to 110kph and averaging in the high 6's l/100k in the Triton. 1650rpm at 100kph in 6th and quiet. I'm liking that. Engine hasn't freed up either yet. Only has 800ks on it. Cheers

Honestly that's great economy and I'm glad your enjoying it. I think Mitsubishi is probably the most reliable diesel engine on the market, all you have to do is look at pajero and triton who have been 2 of the most reliable vehciles on the market.

In saying that it does nothing for me. I'd have power over economy any day of the week.

Originally Posted by 101RRS

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The single turbo 4.5 TDV8 only has around the same power and torque as a 2.7 TDv6 - says a lot and the TDV6 is not an overstressed engine - yes it has issues but so does the TDV8.

Power and torque figures are not everything.
A good look at the power and torque curves for those two engines,in stock form, will show that they are completely different.
Different design,different application,installed in completely different types of vehicles.

Actually its like comparing apples and oranges.

Even driving the two,as i have done, is completely different,very difficult to compare.
The basic difference,for a start,one is manual,and the other auto,and on it goes.

I haven't towed with the 4.5,but have extensively with the 2.7,and it is working pretty hard on the speed limit towing slightly over 3T.

Originally Posted by scarry

Power and torque figures are not everything.
A good look at the power and torque curves for those two engines,in stock form, will show that they are completely different.
Different design,different application,installed in completely different types of vehicles.

Actually its like comparing apples and oranges.

The basic difference,for a start,one is manual,and the other auto,and on it goes.

Yes they are different - the TDV6 develops at slightly higher revs - but it has a 6 speed gearbox vs a 5 speed so stays on "song" better - and remember the TDV6 also came in a 6 speed manual as well as 6 speed auto.

I have not towed 3t but in similar configurations the RRS out performed the Toyota on the road and gave a lot better fuel consumption and all the time my brother was bitchin about his lack of power from his ute.

If your experiences are different - fine - but I stand by my assertion that for a 4.5 litre V8, the single turbo version is pretty lame when the TDV6s paltry 2.7 litres is up there with it and that engine is now low powered compared to modern diesels.

Interestingly my brother is now towing 3+ tonne and says the 4.5 twin turbo 200 Sahara he now has is poor, so is upgrading to a HSV Chev Silverado.

Cheers

Garry

Originally Posted by scarry

Power and torque figures are not everything.
A good look at the power and torque curves for those two engines,in stock form, will show that they are completely different.
Different design,different application,installed in completely different types of vehicles.

Actually its like comparing apples and oranges.

Even driving the two,as i have done, is completely different,very difficult to compare.
The basic difference,for a start,one is manual,and the other auto,and on it goes.

I haven't towed with the 4.5,but have extensively with the 2.7,and it is working pretty hard on the speed limit towing slightly over 3T.

I agree. As a example my petrol v8 makes 500nm at 1600rpm and 560nm at 4400 rpm with 298kw. Mr trout your BIG v8 diesel 4.5 makes 430nm at 1200rpm and 151kw at 3400rpm...

There's only one big engine in this example, the other is simply a waste of 4 cylinders and 2 liters.

I also know which one would tow better, work harder, be more reliable and blow unsuspecting P platers away at a set of lights

Originally Posted by 1nando

I agree. As a example my petrol v8 makes 500nm at 1600rpm and 560nm at 4400 rpm with 298kw. Mr trout your BIG v8 diesel 4.5 makes 430nm at 1200rpm and 151kw at 3400rpm...

There's only one big engine in this example, the other is simply a waste of 4 cylinders and 2 liters.

I also know which one would tow better, work harder, be more reliable and blow unsuspecting P platers away at a set of lights

But we certainly know which one blows the other away into the weeds when it comes to sales,here in Aus

For whatever reason.