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| Why do I need to add an additive in my diesel fuel? A better word for additive would be treatment. A treatment is needed when the diesel fuel is lacking a substance or has a contaminant. This is very obvious in winter time when the temperature gets cold enough to wax up. Treatment with a winterizer lowers the wax point of the diesel fuel to a lower temperature similar to the way adding antifreeze lowers the freezing point of water. The most common reason for treating diesel fuel is to provide extra lubrication. Almost every fuel injection component requires the diesel to lubricate at least some part of that component. Since low sulfur fuel was introduced, the lubricating quality of diesel fuel has varied greatly. Some suppliers put in an additive for this and some do not. Each tank of fuel you fill up with can be different. Since low sulfur fuel began being used in on-highway vehicles we've seen the life expectancy of the fuel injection system drop as much as 25%. This is great for the repair business but bad for diesel vehicles in general especially since fuel injection components keep getting more and more expensive to repair. Taking this into consideration, treating diesel fuel with a lubricant is more like an insurance policy against wear and although it does not stop the wear, consistent use can delay repairs considerably. However, caution should be made not to treat your fuel with an additive containing ALCOHOL. The alcohol has been proven to deteriorate some fuel injection components quicker and could even cause long term engine damage. With an additive like STANADYNE PERFORMANCE FORMULA you not only get the winterizer and the lubricant amongst other benefits you also get a 5 point cetane increase and in turn up to an 8% fuel economy gain to help pay for the protection you get by adding the lubricant.
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