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Old 01-13-2019, 02:04 PM   #1
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B20 diesel to use or not

Hello, I was traveling the I-5 corridor in California most fuel stations had B20 diesel. Does anyone have experience or Knowledge on using it in a 2015 Jayco Seneca? The motor is an ISB6.7 Cummins.
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Old 01-13-2019, 02:44 PM   #2
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I have no experience with the ISB Cummins but I do know you will get less fuel economy with B20 than B5. Also, higher levels of biodiesel will clean out the fuel system which isnít necessary a bad thing but you will have to replace your fuel filters more frequently.
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Old 01-13-2019, 03:23 PM   #3
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Quote:
Originally Posted by Frank 4 View Post
Hello, I was traveling the I-5 corridor in California most fuel stations had B20 diesel. Does anyone have experience or Knowledge on using it in a 2015 Jayco Seneca? The motor is an ISB6.7 Cummins.
Welcome to the forum.

I'd check with a Cummins dealer.
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Old 01-13-2019, 05:36 PM   #4
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Beware of B20 Fuel for Your Diesel Vehicle - Good Sam Camping Blog

If Good Sam says no... that must mean something pretty bad!
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Old 01-13-2019, 05:49 PM   #5
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Problem with "bio" it loosens any dirt and sediment in the tank causing plugged filters. We had tons of trouble with our maintenance fleet when I was in Public Works.
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Old 01-13-2019, 08:41 PM   #6
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Thanks for the replys

I appreciate the info Thanks and Happy Trails.
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Old 01-13-2019, 08:56 PM   #7
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I the Ram applications, the ISB 6.7L is B5 biodiesel compatible from 2007-2013. It is B20 compatible from 2013.5 to present. You would have to check with Freightliner for sure, but I would assume the same compatibility in the Seneca chassis.
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Old 01-13-2019, 09:41 PM   #8
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Ran it on Florida....fuel was orange verse the normal yellow clear look. Couldn't tell a difference but it didnt have an odor.
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Old 01-13-2019, 09:46 PM   #9
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Be sure and buy some extra fuel filters.
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Old 01-13-2019, 11:19 PM   #10
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Thanks for the replys

More good info I've learned a lot researching today thank you.
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