)I live in Europe...
Diesel technology has gone VERY
far away from where it was some 10-15 years ago. In those very popular (here) GT competitions the Diesels have overtaken the 1st place!
As for the big SUVs (and Jeeps), we have had a lot of diesels here, except the Wrangler series. [img]images/graemlins/smirk.gif[/img]
The 1st Jeep I had, the '89 XJ, was a diesel. Liberty, ine Europe STILL being called "Cherokee" (the DC actually calls it Cherokee, nt Liberty!) came with one diesel and one gas engine. I drove the diesel (for a mile or two only), it was 3.5L engine. Unbeliveable torque (diesels have very low minimum, they never run as high as gas engines - I think the "red" RPM area begins a bit before 5000).
Now, MPG... If you take ANY diesel engine and compare it with ANY gas engine of the same size, the MPG ratio is AT LEAST 30% better on the diesel. Example: a friend with 3.5L turboDiesel does exactly 34% more road than I do with my 2.5L gas. Plus, the diesel here costs less (per litre, per gallon, however you like it) than gas.
The WERE loud... now they run like gas engines (well, there is slight difference, but that's it - SLIGHT).
And last, but not least... they last SO MUCH longer! People in Europe, when given a choice of the same car (Jeep [img]images/graemlins/grin.gif[/img]), only difference being diesel/gas, they stop to think of it like this: will I change it soon (5 yrs max) or am I going to keep it? Am I going to make a lot of road, or not so much?
And if they wanna hold on their new car longer & consume less, they'll take diesel.
Let me be clear - I have a gas engine, and I like it. Not that I had a choice, buying a Wrangler. But if I had choice...
Anyway, there's one BIG (read: BIG) problem with diesel: the low temperatures. Maybe you didn't think of it? When temps get low, under 32F (maybe not right there, but at some 5 and lower), be SURE that overnight the paraphine (called like that in english, too?) tends to become jelly and it separates from the fuel -- engine won't run! OK, you can always put some additive in it, but I tested the "guaranteed" aditive on a turbodiesel XJ and... Well, let's just say I had double dose in the tank. Single dose was to protect up to -30F. That night, temp went at -32. It is lower than prescribed, but come on! 2 degrees! To cut it short, I was out. Had to hitch a ride, and to pull the XJ on the sunny parking lot, to let the sun raise the tank temp.
In the afternoon it was OK.
Solution exists, but it's not actually the healthiest one: you put 5% of gas on the full tank of diesel. It mixes and prevents jellying of the paraphine. Engine runs faster, stronger with 5% of gas in it, but I wouldn't swear it's actually the best thing for the engine.
And, of course, the construction of the engine itself... Diesels have much more of compression that gas ones have. So they are built thicker, heavier... It helps the engine stay in good shape for a very long time...
An example... At these parts here, you'll se A LOT of old diesels. Old gas engines? A little, very few. But it is not rare to run across diesels that have well over 400k km (well over 250k miles) on them, with no engine repairs, still running normally. People actually changed everything else, from the starter, tires, oil, etc... everything, but the engine block, cilynders, pistons etc still work like new (well, ALMOST new).
If you see a gas-driven car with 100k miles, you say "well, it has some decent mileage on it". For a diesel with the same mileage, you say "well it's nothing, it's a diesel".
Not to mention that those [email protected]
that run the mileage down to sell a car can run a diesel from 200k miles to 120k and you'd have to be VERY luck & very freakin good mechanic to see it... if you do it on a gas one... from 200k to 120k... even a baby'd see it
If I had an option of buying a diesel-YJ, I'd go for it. If nothing else, I could get 3.5L that has the same MPG as the 2.5L gas. But with some 80HP more. Stock. Add K&N. Add chip. Add exhaust & muffler... we're looking at over 150HP more with the same MPG!!! And add that diesel still costs less per gallon...