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2. Dura Lube - Wikipedia

   en.wikipedia.org/wiki/Dura_Lube

   The company along with several others including Valvoline Engine Treatment, Slick 50 Engine Treatment, STP Engine Treatment, and Motor Up Corporation, was investigated by the Federal Trade Commission in 1999-2000 and was found to have no competent or reliable evidence substantiating these claims about its performance. [3]

3. Motor oil - Wikipedia

   en.wikipedia.org/wiki/Motor_oil

   Motor oil, engine oil, or engine lubricant is any one of various substances used for the lubrication of internal combustion engines. They typically consist of base oils enhanced with various additives, particularly antiwear additives , detergents, dispersants , and, for multi-grade oils, viscosity index improvers .

4. Oil additive - Wikipedia

   en.wikipedia.org/wiki/Oil_additive

   Oil additives are vital for the proper lubrication and prolonged use of motor oil in modern internal combustion engines.Without many of these, the oil would become contaminated, break down, leak out, or not properly protect engine parts at all operating temperatures.

5. Zinc dithiophosphate - Wikipedia

   en.wikipedia.org/wiki/Zinc_dithiophosphate

   Roller camshafts/followers are more commonly used to reduce camshaft lobe friction in modern engines. [4] There are additives, such as STP Oil Treatment, and some racing oils such as PurOl, PennGrade 1, and Valvoline VR-1, Kixx Hydraulic Oil which are available in the retail market with the necessary amount of ZDDP for engines using increased ...

6. Break-in (mechanical run-in) - Wikipedia

   en.wikipedia.org/wiki/Break-in_(mechanical_run-in)

   In the past, the engine break-in period was very important to the overall life and durability of the engine. The break-in period required has changed over the years with improved piston ring materials and designs. In reference to small engines, the break-in period now (5–10 hours) is short in comparison with that of engines of the past.

7. Crankcase dilution - Wikipedia

   en.wikipedia.org/wiki/Crankcase_dilution

   Crankcase dilution occurs when the fuel oil from the engine gets into the lube oil of the engine. This can be caused by the walls being wetted due to the fuel condensing in the cylinder. If the engine is cold, or there is an excess amount of cooling around the cylinder, [ 1 ] the fuel oil will condense and have a higher chance to end up in the ...