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Go Back JeepForum.com > Models > Jeep Grand Cherokee & Commander Forums > WK Grand Cherokee & XK Commander Forum > Sad Yet Happy Day: Sold the CRD

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Unread 04-17-2014, 12:51 PM   #16
grywlfbg
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Quote:
Originally Posted by scootr29 View Post
I am aware that they are different motors, but the WK2 and ML350 share the same chassis......good luck with the B100 and I would like to see progress reports. I work for the largest diesel engine manufacturer in the world and there are reason(s) why we limit to B20. I have seen many modern fuel filters and injectors that have experienced B100 and it is not pretty.

I do applaud your taking the risk.....
Ah, didn't know about the common chassis.

We've had 108k trouble-free (well, as far as the fuel system is concerned) miles w/ our KJ CRD on B100. But I am careful to use only ASTM-spec bio from large producers (no home-brew) and the weather is quite mild here. I'll definitely keep everyone posted.

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Unread 04-18-2014, 08:16 PM   #17
jaje
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Had to rent a car for the weekend (originally rented some kinda toyota sedan with extra vanilla) but this is all they had to give us. That's a 5.0hh and a soft top. 70's this weekend so we'll have some fun. Plus the moment I was at the counter renting it got the call the WK2 is in so heading up to get it tomorrow. Getting some coffee soon so I can make some donuts
img_1366-medium-.jpg  
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Unread 04-20-2014, 07:18 AM   #18
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Picked up the new Jeep yesterday. Discovered an option I don't think I needed but now never want to get rid of - ventilated seats. The one big advantage is that the 8 speed auto make a big difference in highway cruising as I did about 82 mph back into a gusty headwind where the engine could put along at 2,100 RPM (8 speed auto) and it averaged according to the evic 21.4 mpg. The rented mustang we drove up to get it got 19.5 mpg doing 85 mph but we also had a tail wind so you'd figure it could muster better mileage. Got it from Woodhouse Jeep in Omaha (they actually are one of the biggest dealerships in the US).
img_1378-medium-.jpg  
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Unread 04-20-2014, 07:38 AM   #19
scootr29
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Quote:
Originally Posted by jaje
Picked up the new Jeep yesterday. Discovered an option I don't think I needed but now never want to get rid of - ventilated seats. The one big advantage is that the 8 speed auto make a big difference in highway cruising as I did about 82 mph back into a gusty headwind where the engine could put along at 2,100 RPM (8 speed auto) and it averaged according to the evic 21.4 mpg. The rented mustang we drove up to get it got 19.5 mpg doing 85 mph but we also had a tail wind so you'd figure it could muster better mileage. Got it from Woodhouse Jeep in Omaha (they actually are one of the biggest dealerships in the US).
Looks good....
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Unread 04-20-2014, 10:29 AM   #20
jediknight
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I'm sure the fiat VM motori will do fine. Good luck jaje.
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Unread 04-20-2014, 06:19 PM   #21
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Looks nice, but it'll be cooler when you mod it like this:
image-454872205.jpg

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Unread 04-20-2014, 07:42 PM   #22
scootr29
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Quote:
Originally Posted by BAH101
Looks nice, but it'll be cooler when you mod it like this:
Why can't we get a snorkel like that for the WK? That is a nice clean snorkel.
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Unread 05-30-2014, 02:06 PM   #23
grywlfbg
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quick biodiesel update...

Ran one tank of B10, one tank of B20, and then earlier this week filled it up w/ B100. So let the test begin.

One thing to note - from all the reading I've been doing, biodiesel is not recommended if you still have a DPF as the higher flashpoint of bio can cause the fuel to not fully vaporize during regen and leak down past the rings into your oil. You can read more here: http://savebiodiesel.com/issue.html
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Unread 05-30-2014, 07:32 PM   #24
TangoTango
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Originally Posted by grywlfbg View Post
I'll also be introducing the WK to B100 (you know we're all hippies out here in NorCal)
If you do that you really should drop the tank and clean it out first ... or else all the varnish on the tank will let loose and plug everything up.

You probably already know that .. but just a heads-up if you forgot.

Let us know how it goes... i've been thinking of running a blend.
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Unread 05-31-2014, 12:30 AM   #25
IIMacGyverII
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Originally Posted by TangoTango View Post
If you do that you really should drop the tank and clean it out first ... or else all the varnish on the tank will let loose and plug everything up.

You probably already know that .. but just a heads-up if you forgot.

Let us know how it goes... i've been thinking of running a blend.
That's hard to believe with any modern diesel. You'd think they'd build it to withstand that fuel.
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Unread 06-10-2014, 06:41 PM   #26
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Originally Posted by IIMacGyverII View Post
That's hard to believe with any modern diesel. You'd think they'd build it to withstand that fuel.
It's not anything related to Jeep. The varnish that TT is talking about is "gunk" that builds up from regular diesel use. As Biodiesel is a strong solvent it tends to loosen and pick up this gunk and send it through the fuel system resulting in clogged fuel filters.

I bought 2 fuel filters and carry one with me at all times but so far so good. One tank of B100 in and just filled up again today. Looks like jaje used high-quality diesel
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Unread 06-10-2014, 07:22 PM   #27
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What mileage and price are you looking at grywlfbg? I have a buddy that make biodiesel up here and sells for I think 2.50/gal.
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Unread 06-11-2014, 04:23 PM   #28
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I'm seeing ~21mpg around town on the EVIC. In theory biodiesel has 5-7% fewer BTU's than D2 (depending on seasonal and regional blend) so you should expect lower mpg.

I would be incredibly nervous to use homebrew or non-ASTM-certified bio in a modern CRD/high injector pressure diesel. It's a major simplification but the process for converting "oil" into biodiesel is to remove glycerin. If you miss any of that glycerin and it goes through a high-pressure injector it turns into Crisco. Not only does that clog injectors it doesn't vaporize or compress in the cylinder resulting in crunched valves and pistons. If you had an old diesel then go for it but I wouldn't run it in a WK.

ASTM-spec B100 around here has been quite stable at a $0.25 premium over D2.

So if it's more expensive then why do it? I find that the engine runs a lot quieter with bio. Bio has much higher lubricity than D2 even with the additives for ULSD. And not to get too political and I'm sure there are exceptions but bio is domestically produced and I like that. Also there's a lot less pollution w/ bio. There are still so-called greenhouse gases like NOx w/ bio but there isn't any sulphur, benzene, arsenic, dissolved metals, etc. and carbon monoxide is a lot lower w/ bio.
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