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01-21-2017, 03:47 PM
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#1
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Senior Member
Winnebago Owners Club
Join Date: Oct 2008
Posts: 422
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Bio-Diesel fuel mixture
We have encountered a growing number of stations that only have the "Bio-Diesel" 10 to 20% mixture.
We have a 2011 Itasca Meridian with the 380 HP Cummins diesel. Does anyone know what Cummins recommends with regards to "Bio-Diesel".
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01-21-2017, 03:53 PM
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#2
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Senior Member
Newmar Owners Club
Join Date: Oct 2009
Posts: 10,308
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Quote:
Originally Posted by lwasouth
We have encountered a growing number of stations that only have the "Bio-Diesel" 10 to 20% mixture.
We have a 2011 Itasca Meridian with the 380 HP Cummins diesel. Does anyone know what Cummins recommends with regards to "Bio-Diesel".
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Just to show how far Cummins was looking ahead.............my "2000" ISC is compatible with up to 20% bio diesel..........per the engine manual that came with my Coach. Your will be just fine..........also take a look at the manual for your engine, it will say in there.
__________________
2012 Essex 4544 2011 Jeep JK, M&G Braking, 2014 MTI 27' Hog Hauler, Wireless brake control, 2006 Ultra & 1989 Springer, 2003 Harley-Davidson
FLHR Road King Anniversary
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01-21-2017, 04:51 PM
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#3
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Senior Member
Winnebago Owners Club
Join Date: Aug 2013
Posts: 1,636
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Yes you'll run just fine on it, in fact you'll be hard pressed to find pure diesel out there for the most part.
__________________
2012 Journey 40U (Our Incredible Journey)
2008 Dodge Dakota(TOAD) 2005 Honda Shadow in TOAD
AF-1 braking system
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01-22-2017, 09:00 AM
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#4
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Community Moderator
Join Date: Sep 2011
Location: Between the Oceans
Posts: 8,017
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if you feed your engine with b20, it won't complain, but, you will suffer the loss of mileage.
i know for a fact that my isc 350 does not like it. i track my mpg on each tank, clearly it shows. needless to say, i always try to skip bxx when possible.
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Steven & Polly
2000 Country Coach Intrigue 40' ISC 350
2018 Ford Explorer 4WD
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01-23-2017, 02:35 PM
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#5
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Senior Member
Winnebago Owners Club
Join Date: Oct 2008
Posts: 422
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I referred to my engine manual about biodiesel, and the only thing mentioned was to refer to bulletin #3379001 which I do not have. I sent in a request to "QuickServe" to see if they reply
ISC 8.3 - 10
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01-27-2017, 07:47 AM
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#6
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Senior Member
Join Date: Jul 2009
Posts: 623
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I agree with Country Fit my isc 330 runs fine with the mix but I also have poor fuel economy, so look for a lower price point.
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John, Pat and the cat named Missy
2011 Winnebago VIA T
HONDA 2015 PILOT in tow
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01-31-2017, 07:52 AM
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#7
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Senior Member
Join Date: Oct 2011
Posts: 817
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Quote:
Originally Posted by lwasouth
I referred to my engine manual about biodiesel, and the only thing mentioned was to refer to bulletin #3379001 which I do not have. I sent in a request to "QuickServe" to see if they reply
ISC 8.3 - 10
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We called Cummins about B20. Gave them the engine serial number and said that our (11 40U) engine would be fine but to call Freightliner for the rest of the system.
Asked Cummins about our Onan generator and they said call Kubota!
Freightliner says that Winnebago does not spec their chassis for B20, so that's what they build.
Winnebago, when pressed, said don't use B20!
We try to avoid, but in the summer that is all we find at most Pilots and Flying J's.
__________________
-- Jeffrey and Maren
2011 Winnebago Journey 40U
Ford Escape Hybrid with Blue OX, Air Force One and TST
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01-31-2017, 08:59 AM
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#8
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Senior Member
Winnebago Owners Club
Join Date: Aug 2013
Posts: 1,636
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mjeffery, some one a lot of someones were giving you a bunch of double talk. ALL Cummins engines after about 2001 are built to handle B20. They do not have 1 engine for Winnebago, 1 for Entegra, 1 for Monaco, etc. All Cummins engines no matter which unit they go in are the same as far as fuel requirement based on the EPA's requirements. Who ever you talked to a Winnebago has no clue as to the engine fuel requirement. As to Freightliners reply, the chassis has no bearing on what fuel the motor requires, it's just a chassis built by Freightliner to Winnebago's specs.
__________________
2012 Journey 40U (Our Incredible Journey)
2008 Dodge Dakota(TOAD) 2005 Honda Shadow in TOAD
AF-1 braking system
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01-31-2017, 09:16 AM
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#9
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Senior Member
Join Date: Oct 2011
Posts: 817
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Cummins did say that my engine would be fine, but they can't comment on the fuel lines, tank, filter system/implementation.
Winnebago originally said to call Freightliner.
We don't have an Aquahot/Oasis system to complicate matters.
You can't just look at the engine.
Haven't called Kubota, but the generator lines, filters etc. are also part of the overall system.
__________________
-- Jeffrey and Maren
2011 Winnebago Journey 40U
Ford Escape Hybrid with Blue OX, Air Force One and TST
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01-31-2017, 09:40 AM
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#10
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Senior Member
Freightliner Owners Club
Join Date: Aug 2008
Location: Florida Keys
Posts: 2,687
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Using B20 after prolonged use of dino diesel will loosen up any deposits on your fuel tank and may clog your fuel filter or reduce your engine performance.
I've put 100,000 miles on my 2006 Cummins ISL so I had some crap at the bottom of my tank when FJ's in the southeast starting shifting to B20. After a few tankfulls of B20, my coach starting hesitating on the upgrades. I threw some Diesel-Kleen in the tank and that helped. I made it home and quickly changed the fuel filters.
So now I pour a half a bottle of Diesel-Kleen into every tank of B20 just to keep things operating.
__________________
Tom and Katharine
'07 Winnebago Tour 40TD, 400hp Cummins
'17 Winnebago View 24V, '02 R-Vision B+
RVing for 20 years & 200,000+ miles
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