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Old 11-21-2013, 07:48 PM   #15
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Hi Bounder, I went back to my link to the HFRR test and discovered I messed up the link, sorry. The link in this post is correct for the HFRR test performed in 2007.

I now use FPPF additive, and have noticed a difference in overall performance from my Duramax engine and my Cummins ISC engine. I have not used anything specifically for reducing/preventing a sludge problem, perhaps I should buy a bottle of Biobor, just-in-case.

2000 Winnebago Ultimate Freedom USQ40JD, ISC 8.3 Cummins 350, Spartan MM Chassis. USA 1SG, retired;PPA,Good Sam Life member."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 theConstitution. "Abraham Lincoln"
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Old 11-22-2013, 07:12 AM   #16
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Ray, I am assuming your Duramax is in a pickup you use as a daily driver or a 5th wheel tower. As you move the fuel through the truck at a fairly rapid pace the chance of algae is very slim unless you get it from a fuel vendor. The Cummins I will assume is in your big rig and may sit for extended periods. In that case I would treat mildly for algae when stored. I hope we have not hijacked this thread, if so my apologies.

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