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WESTWOOD C70-32 FUEL RITE EP FUEL OIL ADDIDTIVE 32oz BOTTLE 2500-3000 GALLONS OF FUEL OIL!!! Evaluating Sludge-Control Additives: The Jar Test This simple test was developed to compare the relative ability of fuel additives to inhibit sludge formation and protect steel surfaces against fouling and corrosion in the presence of free water (condensation) and biological contamination. To run the test, several glass jars are lined up, and into each is placed a small amount of water, fuel oil or diesel fuel, a steel panel or "coupon", and a small amount of fuel oil sludge removed from a fouled filter. One jar is designated the "control" and receives no additive. Each of the other jars is treated with a candidate additive at the manufacturer’s recommended dose. The jars are then loosely capped and placed in a dark box or closet. One such jar is shown below, along with a new steel "coupon". Once a month the jars are opened, most fuel removed and replaced with fresh fuel, and the jars retreated with their respective additives. This process is repeated until, after 12 to 18 months, the "control" coupon has become well fouled as shown below. At that point the test is discontinued and all jars are compared with the untreated jar and coupon with regards to… 1. fouling of the coupon surfaces, 2. corrosion of the coupon (by weight loss), and 3. general growth of biomass ("sludge") The third category is determined by pouring the contents of each jar, after removing the coupon, through a kitchen strainer and observing the amount of "stuff" left in the strainer. The various products are then scored in these three categories on a scale of 0-10, with the "control" scoring a "2" in each category. A score of less than "2" indicates the additive in question actually was worse in that category than no treatment at all. A score of "10" in any category indicates that additive was perfect in that regard. Below are some typical results. We have tested most of the additives currently on the market. Contact us for results on any particular product(s) as compared to Fuel Right® (this posting is the responsibility of the poster) |
Hazel.Langley@dfwind.com (Hazel Langley) for more information. All emails will be forwarded to the poster's actual email address.
