Arctic Spec Oils

[MolaKule]

Conoco introduced the DN-600 "polar" fluids of linear alkybenzene around 1968. It was made by the alkylation of benzene with chlorinated paraffins. It had a pour point of -70 F, a flash point of 435 F, and a viscosity of 5.0 cSt at 100 C. The alkybenzene was blended with ethylhexylazelate di-esters.

A bit later, Chvron introduced the "Chevron Sub Zero Fluid," a 7.5W20 made of 70% PAO and 30% azelate di-esters.

[ February 18, 2003, 12:07 AM: Message edited by: MolaKule ]

 

[addyguy]

Just bumping this very old post up because I find the 'early days' of synthetics fascinating.....things were so varied then. There were so many different 'ways of getting to X point'.

Today it is easy to get a high-quality 20-weight oil that will function well in 'arctic' conditions...a lot are just high-quality group III. Its good that these oils are easily availiable, but it takes some of the 'mystery' or 'intrigue' out of them.....