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Higher purity and therefore better property control theoretically means synthetic oil has better mechanical properties at extremes of high and low temperatures. The molecules are made large and "soft" enough to retain good viscosity at higher temperatures, yet branched molecular structures interfere with solidification and therefore allow flow ...
A sample of synthetic motor oil. Synthetic oil is a lubricant consisting of chemical compounds that are artificially modified or synthesised. Synthetic oil is used as a substitute for petroleum-refined oils when operating in extreme temperature, in metal stamping to provide environmental and other benefits, and to lubricate pendulum clocks.
Synthetic oils are much more resistant to thermal breakdown and their lubrication properties will aid in maximizing the life of the turbo. 132.20.251.4 23:52, 20 June 2007 (UTC) Synthetic oil is categorically better than conventional oil, therefore you decide to cry POV. Give it a rest. --Haizum μολὼν λαβέ 11:12, 23 June 2007 (UTC)
Since the inception of the scale, better oils have also been produced, leading to VIs greater than 100 (see below). [3] VI improving additives and higher-quality base oils are widely used nowadays, which increase the VIs attainable beyond the value of 100. The viscosity index of synthetic oils ranges from 80 to over 400. [citation needed]
There are specialized products that perform better than WD-40 in many of these uses, but WD-40's flexibility has given it fame as a jack of all trades. [ 3 ] It is a successful product to this day, with steady growth in net income from $27 million in 2008 to $70.2 million in 2021. [ 4 ]
Another important factor is that four-stroke engines have a different requirement for "stickiness" than do two-strokes. Since the 1980s, different types of two-stroke oil have been developed for specialized uses, such as outboard motor two-strokes, as well as the more standard auto lube (motorcycle) two-stroke oil.