oil without vii's

[jldcol]

People on the forum often ask early on is say 10w30 oil really 10 weight oil treated to act like 30 weigth hot? I think not. Example rotella 30 wt. very good stuff could be called a 20w30 perhaps. Add some vii's and now say 20w40. A little work on cold temp flow and 15w40, from a 30 wt. base oil. Maybe thats why this works well for diesels a good group II/II+ base oil for when additives fail. 20w50 is thicker perhaps 40 wt. base or thick end of 30 wt. 10w30/40 thinner probably a base of 20wt. oil . 5w/xx thinner still at 10 wt. base oil. ow rated oils must be a 5wt or so base.

 

[toocrazy2yoo]

Huh?

What are you saaaaaaaaying?

 

[jldcol]

Question of base oils viscosity without vii's. I submit that most passenger car multi-viscosity oil are additized 20wt. base oils and not say 5/10 weight.

 

[BuickGN]

Could be anything.

My VII-less ACD 30wt is also a 10-30. On the bottle, it's labeled "30/10-30".

 

[aquariuscsm]

Mono grade oils?