Diesel Exhaust Fluid Facts
Diesel Exhaust Fluid (DEF) is a mixture of 67.5% deionized water and 32% urea. It does have a freezing point of 12 degrees F. Freezing and thawing cycles have no impact on the grade of the product. DEF expands when frozen as much as 6.5% by volume. Most packaging allows "leeway" for freezing periods. In extremely hot temperatures, it is best to store DEF in shady and or covered in storage.
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Motor oil facts
There are three types of engine motor oils:
1) Mineral Oil: Mineral engine oil is made from crude oil. Once extracted, and transported to a refinery, the crude undergoes several refining processes to remove as many impurities as possible. This oil mainly consists of hydrocarbons, but may also contain traces of compounds such as sulfur or nitrogen. After processing, additives are added to the oil to improve its performance.
2) Synthetic Oil: Synthetic oil is created chemically in the laboratory, but it can also come from refined petroleum. Refining synthetic oil is a more complex process than for mineral oil; it involves modifying the structure of the hydrocarbon molecules. Additives are introduced and the product is considered a high -end oil and delivers a higher performance than mineral oil.
3)Semi-Synthetic Oil: Semi synthetic oil is a blend of synthetic and mineral oil. The proportions are not equal: semi-synthetic contains at most 30% synthetic oil. Some manufacturers use varying amounts of less synthetic.
