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Old 12-22-2018, 07:03 AM   #1
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Fuel Additives in an ISC 330

I have a 2005 Holiday Rambler Ambassador with a Cummins ISO330 bought in May. I've had other diesel pickups and was familiar with care of those. In this one, should I be running Power Service Diesel additive or other brand in this motorhome. Winter/Summer??

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Old 12-22-2018, 09:43 AM   #2
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Power Service Lubricity and Cetane additives are currently recommended/approved by Cummins.

My old mechancial C8.3 seems to like the stuff!

1998 American Eagle 40EVS
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Old 12-22-2018, 09:56 AM   #3
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I think you mean an ISC 330 and FormerBoater is correct
2009 45' Magna 630 w/Cummins ISX 650 HP/1950 Lbs Ft
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Old 12-22-2018, 04:00 PM   #4
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Yes! ISC. Fatfinger syndrome! Thank you for your quick replies guys.
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Old 12-23-2018, 07:36 AM   #5
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I use the power service grey bottle (cleaner lubricator) in the warm months in all of my diesels (8) and use white bottle in the winter when needed.
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Old 12-24-2018, 07:52 PM   #6
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I dumped some PS into my coach the other day, and I did notice a difference. Maybe my imagination but it seemed to run better.
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Old 12-27-2018, 11:20 PM   #7
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For interesting and informative reading: Lubricity additive ISO study results
2000 Winnebago Ultimate Freedom USQ40JD, ISC 8.3 Cummins 350, Spartan MM Chassis. USA IN 1SG retired;Good Sam Life member,FMCA."We the people are the rightful masters of both the Congress and the Courts - not to overthrow the Constitution but to overthrow men who pervert the Constitution. "Abraham Lincoln"
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Old 12-29-2018, 08:58 AM   #8
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Anyone that has ever been caught in rapidly changing weather with untreated fuel in the tank knows the value of treatment. Those that haven's should just count themselves lucky and keep their mouth shut.

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