好市多賣的mobil1 15W-50 全合成機油 也是跟5W50一樣都是PAO基礎油嗎 謝謝
http://www.mobil.com/Australia-English/LCW/Audiences/Synthetic_V_Mineral.asp
There Are Four Different Types of Motor Oil Base Stocks
We know that basestock composition has a significant effect on the overall performance of motor oil. There are four different types of base stock used in the motor oil market today.
Group 1 - Conventional - Mineral oil derived from crude oil
Group 2 - Hydroprocessed - Highly refined mineral oil
Group 3 – Severe hydroprocessed - Ultra refined mineral oil
Group 4 – Full synthetics (chemically derived) - Chemically built Polyalphaolefins (PAO).
這個文件,說明SuperSyn Technology,其中第二頁
http://www.exxonmobil.com/files/PA/AP/SuperSynBrochure.pdf
Mobil 1 with SuperSyn uses a
combination of high-performance
engineered fluids, including
polyalphaolefins (PAO), plus
the latest innovation in synthetic
technology – the proprietary
SuperSyn anti-wear system. This
combination of high-performance
components in Mobil 1 has resulted
in a motor oil that can provide
excellent engine protection, and
one that exceeds car manufacturers
and oil industry specifications.
有 SuperSyn 或專利 SuperSyn anti-wear system 標示,表示該油確實含有
Group4 PAO full symthetics
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