Aside from 'over wintering' or ' long standing' concerns ....
It is a given that diesel seems to have inordinate issues with water contamination ... which leads to fungus = sludge ... and maybe just muck in the mfg process. ((Gas too, which is why there is a market for "gas dryer" stuffs, usually some kind of alcohol - - NOT the drinking stuff - - I have used HomeDepot's lacquer thinner with good results)) ...
As it is with my diesel dozers, before @ use with them I drain the tanks and each filter, getting at least a little water, sometimes a lot if standing for a while.
W/diesel , I have used a product: "BG 44k" in all 3 of my '83-'84 300 s. Cleaned the whistle out of the tanks and lines. Maybe a tad touchy on the price, maybe high. When I out the first can in one vehicle, I drove about 90 miles and the car stopped. Got out gave it a few prime pumps and went merrily on. The next morning saw the prefilter clogged as with dried pig snot yuck. Immediately changed that to a fresh one, which got brownied by the end of the sameday, after that all have been really clean.
So, I dunno if the BG did it or if any other brand, e.g.: "SeaFoam" is worth or equal to the time of day or price. Anyway, I got a case of the BG and, just for giggles, toss one in @ car about every 4-6 months . No problems.
(I changed the main filters as well)
I use the same stuff in the 50 gallon tanks on my 1947-48 Allis Chalmers HD5 dozers.
Nick
On Wed, Sep 19, 2012 at 7:19 AM, Boyd Wright <bgthegreat@verizon.net> wrote:
I live in Maryland, there are winters when it gets really cold and I have had the crud. I try to keep the tanks full most of the time so that the screen is below diesel level. I own an 82 and 85 and the crud has hit me once. I don't know if it is because of the warmer temps or that I keep more fuel in the tank. I store two old Chryslers and I always keep the tanks topped off to avoid condensation. Hope that helps.Boyd
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