How many science you know about lubricants.
With the change of every passing day, more and more precision the engine would be, the demand for lubricants oil also became more strictness. Hence, how to prolong its life to reduce cost has been a public importance issue. To attribute the reasons, it can be summed up to the following points for promoting synthetic oil development.
（1）Shortage of crude oil resource.
（2）Effectiveness from saving energy policy.
（3）Prolong engine part’s life.
（4）Increase lubricants use duration.
（5）Meet the requirement under severe operating.
（6）Decrease operation cost.
The main component is a hydrocarbon, mineral oil because the molecule is more vulnerable, either low or high temperature fluidity is not good, there are often oxidation, usually mineral oil are priced lower, although the lubricating function is also the worst, but sufficient to meet the general road driving
Mineral oils and synthetic oils made by adding a certain proportion of the prepared base oils with various additives, additives compensate for the lack of mineral oil, mineral oil stability Lubricating molecules that low temperature fluidity, high temperature oxidation resistance and volatility are preferred, usually printed on the packaging will Synthetic, Semi-Synthetic, Synthetic Based, Synthetic technology and so clearly marked, we call semi-synthetic or partially synthetic oil, these oil prices are cheaper
By definition is entirely are 100% synthetic oil, such oil packaging often seen Fully Synthetic, 100% Synthetic sort of label, which literally stands for "Full synthetic oil" Usually this type of oil due to the better quality so the price is relatively high, and each will have a different brand of oil additive formulations, inhibit Oxidation and for turnover, clean, wear-resistant effect is best
How to choose the most suitable oil
According to car manual recommendation to use the suitable lubricants oil.
According to the engine design to choose the fit lubricants with proper oil film.
Choose lubricants carefully without blind faith to higher price product.
Avoid using fake oil to damage engine.
Choice the lubricants oil with API Specifications.
Do not ignore oil-drain intervals, checking the lubricants regularly.
Hearing the engine running sound and feeling the lubrication from engine oil.
Do not use the additives with origin unknown. In fact, qualified engine oil do not need add extra additives with origin unknown. In fact, qualified engine oil do not need add extra additives because different additive characters would not cause the estimated chemical reaction and would not resolve problems.