Please interpret

[GregH]

Bob Woods, Thanks for the reply, boy when you ask for info around here you get that amd more. GregH

 

[Bob Woods]

Your welcome! if you want to read more do a Goggle search for "solvent refined severely hydrofinished oil" What I posted I found that way. Bob Woods

 

[BOBISTHEOILGUY]

We have a section already setup with the answers to that question. This will explain all the processes and how it affects the oils, the basic groups and so on. bob Oil Basics.

 

[GregH]

Hello, Will someone tell me what solvent refined , severely hydrofinished oil means. Could it be group 1? That is what the balance of the Schaeffer's 7000 15w-40 is composed of minus the PAO's which I assume means synthetic base? Thanks GregH

 

[Bob Woods]

Paraffinic products are severely solvent refined, hydrofinished and are catalytically or solvent dewaxed to provide superior thermal and oxidative stability. This process provides excellent color and high VI characteristics while exhibiting outstanding lubricating performance properties in both industrial oil & automotive grease applications. Naphthenic products are severely hydrotreated to produce high quality basestocks with exceptional low temperature performance. They are used in many applications where higher solvency is required relative to solvent extracted base stocks.