The Technical Truth? :Petrol vs Diesel

[Magma]

my answer in bold!

just so that I know what answer you are looking for....what makes you doubt a diesel?

NOthing now!!
youve cleared it all up ( i was misled by mechanics that seemed to be of the opinon that diesel engines if less driven - "karaab ho jaate hain aur maintenece nikalege" )

[jat]

Originally Posted by pgsagar

no matter how much improved diesels have become these days, there are other issues like increased tyre wear, more regular suspension overhauls, body rattles due to vibrations and not to mention the periodic maintenance of injectors, pumps etc.

The total power of petrol is miniscule compared to diesels (this includes, trucks and other engines)

and god forbid if timing belt snapped or a pump needed replacement then it would cost enough money to negate the fuel economy.

That way we can say that petrol being more combustible (flash point is lower) and is more risky to drive (the loss of life can negate everthing in life)

also, these modern CRDi engines of verna, getz and swift that every one is going so gaga over will lose their charm after 70-80,000 kms. they do not run as fast and as efficiently after this mileage. i saw it in many accent crdis. some problem or the other starts surfacing to the point that people tend to palm 'em off.

You really hate diesels. Anyway, as per data available, the problems surfacing are more due to other reasons than diesels (just find the old amby taxis which have run more kms than most of the private petrol owners and many are still running)

the petrol engines on the other hand, even abused ones, run the same even after 2.5 lakhs. if diesels are really so good then why are manufacturers still making petrol cars?

the largest IC engine on order is diesel and going to produce power about 115,000 PS. These engines are completely camless (that is even for exh valve you don't have cams), they have VTEC etc etc. However as mentioned before, to scale them to a small size to fit in a car, is a very tough job (you can scale them easily, but cost of the car will then be more than twice of petrol ones). And you can see that current trend (where permitted by authorities) is for diesels all over the world. It is just a question of finding the technology to make it affordable to people.

[tadukuttan]

Originally Posted by NOTORIOUS

i have a elantra crdi with my friend which has clocked 135k+ and still the same performance like new.the car is only in the hands of me and my friend . i strictly believe that it purely depends on how you keep the car.

OT : during the last visit to a hyundai service center in punjab, the service people showed me a blue coloured elantra crdi which has clocked 267k+ kms ,they say that it has the same pickup as new with +- 5 to 8% diffrence.the car is there for left rear door replacement.

That is reassuring to know! I have one too, and it is just past 70K. Till now, have always sold cars around 2.5 to 3 years. For the first time, I am seriously considering keeping the car for a lot longer. Not only that there is no performance loss in the engine, I think it only got better. And of course, I really cannot think of anything else in Diesel(addicted to the Torque) which will substantially better the car and its engine(+ Petes), in anything less than 30lakhs...

And as for the "technical truth", I think I *like* diesels better now, after some 2.5 years with the Elantra CRDi. Even if the diesels cost more to maintain, I would still buy them. Of course, they don't cost more to maintain, and nothing beats the fun of being pushed into the seat every time you gently prod the throttle.

What I would like to see bettered in a diesel? More revs to play with. Maybe someday somebody would figure a diesel plant which will rev well to 7K rpm?

[wanderlust]

Folks,

The reason for this query arises from the fact that I have had a Safari for a year now, its 14000 kms old and is still smoking. Concorde motors have tried cleaning air filters, cat con, changing the timing etc, but to no avail. Just 2 days after a smooth performance, its back to black smoke when I try to accelerate a little harder.

Now, to the question: I have driven M800, Zen and Honda City for over 7 years, I have not really changed my driving style after moving to a diesel vehicle - is there any need to change? How different is driving a diesel vehicle to a petrol vehicle??

Thanks!

[gd1418]

You didn't mentione what model of Safri you have. Is it the 3.0L DICOR? Maybe your injectors are getting clogged (bit unlikely) or the ECU needs a remapping.

Try adding System D injector cleaner at the next tankfull. This should also help.

Originally Posted by wanderlust

Folks,

The reason for this query arises from the fact that I have had a Safari for a year now, its 14000 kms old and is still smoking. Concorde motors have tried cleaning air filters, cat con, changing the timing etc, but to no avail. Just 2 days after a smooth performance, its back to black smoke when I try to accelerate a little harder.

Now, to the question: I have driven M800, Zen and Honda City for over 7 years, I have not really changed my driving style after moving to a diesel vehicle - is there any need to change? How different is driving a diesel vehicle to a petrol vehicle??

Thanks!

[nitrous]

Originally Posted by notorious

they say that it has the same pickup as new with +- 5 to 8% diffrence.the car is there for left rear door replacement.

More power comes out of a well used engine??

[Zappo]

Originally Posted by nitrous

More power comes out of a well used engine??

ok ok... forget that + thingy... what he means is that a little here and there

[sridharps]

[quote=hellspawn;662452]the diesels being priced 70-80k more than the petrols is actually a marketing strategy.

Well, I think this is simplistic. If this were so, many companies would opt to just sell diesel engines and not bother to make petrol at all..