Last post on Dec 05, 2013 at 5:50 PM
You are in the Automotive News & Views
What is this discussion about?
Car Buying, Biodiesel, Diesel, Hybrid Cars, Coupe, Hatchback, SUV
#9667 of 11692 Re: 2014 Jeep Grand Cherokee EcoDiesel [ruking1]
Jun 15, 2013 (4:56 pm)
Edmunds uses the EPA mileage ratings. As of this time the EPA does not have the JGC diesel ratings listed. Jeep on their website show:
Max Highway Driving Range:
21 city / 30 hwy – 4x2
Max Highway Driving Range:
20 city / 28 hwy – 4x4
Fuel Tank Capacity (gal)
The EPA does not have a listing for the GLK250 Bluetec either.
#9668 of 11692 Re: 2014 Jeep Grand Cherokee EcoDiesel [gagrice]
by Stever@Edmunds HOST
Jun 15, 2013 (5:03 pm)
I think the key is the comment that "Fuel economy kept improving."
Some people get EPA mpg out of the gate, but it took a lot of miles for my van to hit its stride.
#9669 of 11692 Re: 2014 Jeep Grand Cherokee EcoDiesel [gagrice]
Jun 15, 2013 (5:04 pm)
Sounds like it is a case of the early testing catching up to the logistics.
#9670 of 11692 Re: 2014 Jeep Grand Cherokee EcoDiesel [steve_]
Jun 15, 2013 (6:55 pm)
I don't have a doubt about the JGC beating the EPA estimates. You really cannot depend on the auto publications to give a vehicle a fair shake on mileage runs. What would a Prius get going 80 MPH in a heavy head wind? Blown off the road.
#9671 of 11692 Re: 1984 chevette diesel with factory shocks !? [gagrice]
Jun 16, 2013 (6:38 am)
heh heh. nice parts diagrams. TMI can be fun for automotive geeks.
to make the discussion relevant to diesels i will point out that the heavier front end of the diesel vehicle exacerbates the 100% suspension degradation which is inevitable even with the highest quality suspensions, including those with 2 shocks per wheel.
shocks damping ability becomes effectively *zero* after one decade, never mind two decades... this is independent of whether there is a visible leak.
spring constant of springs degrades, inevitably, and especially after shock performance has degraded. put a new buick on the bumpy wet skidpad and then the 20 year old lexus and see which one can brake/turn/perform, and which one spins out and augers a few orange cones.
on a dry 20 mph drive to the market once per week, i suppose there's not so much worry, eh?
also to make it relevant to diesels we could post the suspension parts diagrams for the chevette diesel . i found a link showing window sticker of a 1984 chevette diesel. $7000. it doesn't include properly here for now however...
#9672 of 11692 Re: 1990 lexus with factory shocks !? [gagrice]
Jun 16, 2013 (7:06 am)
When My wife read it was one of the top 5 cars ever built she decided she wanted to keep it forever.
Gotta keep momma happy. I bought my wife her first Lexus LX in 2003. She decided she would never drive anything else. Next one in 2007, and then a 2013 this last Feb. She drives about 5,000 miles per year so gas cost is not too bad.
I wish she would have been satisfied to stick with the first one !!!
#9673 of 11692 Re: 1984 chevette diesel with factory shocks !? [elias]
Jun 16, 2013 (7:52 am)
shocks damping ability becomes effectively *zero* after one decade, never mind two decades... this is independent of whether there is a visible leak
This really depends on the quality of the original components. I have seen struts kaput at 60000 mi but I have also seen them just fine and more than just capable of handling suspension duties during an emergency maneuver on a bumpy corner with an old 88 4x4 Camry I used to have. I bought it used, but it had the original struts, and that car was still very well composed at 174000 miles. And those miles during its life were not Florida smooth freeways with no frost damage conditions. The roads here are the opposite of that. One thing of note though, it rarely went anywhere with 4 passengers so that is going to help a little I guess.
My friend's 86 Jetta TD struts were complete toast at only 112000 miles.
#9674 of 11692 Re: 1984 chevette diesel with factory shocks !? [elias]
Jun 16, 2013 (7:55 am)
to make the discussion relevant to diesels i will point out that the heavier front end of the diesel vehicle exacerbates the 100% suspension degradation
Some mfgrs recognize that extra weight of a diesel and are using aluminum blocks. MB for one. Still, the components in a diesel will still weigh more than a gasser...especially the crank and rods.
#9675 of 11692 2013 Mercedes-Benz GLK250 BlueTEC
Jun 16, 2013 (4:10 pm)
Yet another review, from someone with a diesel bias. A rare person in the Auto Blogosphere.
The GLK250 is EPA rated for 24 MPG in the city and 33 MPG on the highway, impressive for an SUV of the GLK's size and seemingly un-aerodynamic shape. But the EPA tests are unfair to diesel vehicles, which often exceed their EPA figures by a sizable margin. During a half-day of mixed low- and high-speed driving around Los Angeles, my GLK averaged an even 30 MPG. Now that's impressive!
Like other diesels, the GLK has a selective catalyst reduction (SCR) emissions system, which means the GLK requires diesel exhaust fluid (DEF, sometimes known by the trade name AdBlue). Mercedes has equipped the GLK with a large (7.3 gallon) DEF tank, which should be enough for 20,000 to 30,000 miles or more, and they top off the tank at every 10,000 mile service. That's important, because EPA regulations mandate that the engine be disabled if the tank runs dry. (The driver gets repeated warnings on the dashboard long before that happens.) I've heard of dealers charging a couple hundred bucks to refill the tank, but you can save money by doing it yourself: DEF is widely available for around $20 per 2.5 gallon bottle
#9676 of 11692 Re: 2013 Mercedes-Benz GLK250 BlueTEC [gagrice]
Jun 16, 2013 (4:43 pm)
I've heard of dealers charging a couple hundred bucks to refill the tank, but you can save money by doing it yourself: DEF is widely available for around $20 per 2.5 gallon bottle
I was in O'Reilly's Auto Parts this morning, recycling some used motor oil, and I picked up their latest sales flyer. They're showing 2.5 gallons of DEF for $12.99. I really think the DEF is becoming a non-issue.