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Could be different suppliers, the chemistry of the additive package is over 20 years old by now so it wouldn't be covered under patents anymore. Many coolant brands also buy the additive package from a supplier and blend it with EG (and water for ready-mix coolants). I suspect Glysantin (BASF)...

Originally Posted By: Gokhan Originally Posted By: Edis (2) ExxonMobil do not make any such claims in the documents you've provided. They claim that replacing 10% esters with 10% AN in an PAO based engine oil will reduce wear in Sequence IVA from 541 to 147 μm, but this does not mean that esters...

Originally Posted By: Gokhan I haven't gone through all of this -- there is lots and lots of info to absorb here! Two things struck me though: (1) It turns out that the base stocks, not just the viscosity-index improver (VII), also shear. This is especially true with the advanced synthetic...

According to GM dexos1 is on par with ILSAC GF-5 (API SN) with regards to sludge control, catalyst protection and fuel economy but delivers better corrosion protection, low temperature pumpability, aeration control, elastomer compatibility, shear stability, oxidation control, wear protection and...

Saab used G48 as the factory fill until 2001, then they switched to G34 (Dex-Cool). Water requirements as per BASF (Glysantin) recommendations: Chloride content: max. 100 ppm Sulphate content: max. 100 ppm Water hardness: 0 – 2.7 mmol/l (G48) Water hardness: 0 – 3.6 mmol/l (G34) As we can...

Originally Posted By: MolaKule Teflon makes for a decent thickener for greases: https://www.bobistheoilguy.com/forums/ub...rt_I#Post729336 PTFE is an inefficient thickener, but with useful properties for some application. Often used with PFPE base oils (like Chemours Krytox grease).