VIA) which is tiered according to viscosity grade: 1.4% minimum for SAE 5W-20, 1.1% minimum for SAE 5W-30 and 0.5% minimum for SAE 10W-30. GF-2 also requires a minimum level of fuel economy versus a reference oil (BC-2) in a standard engine test (Seq. Under current GF-2 American Petroleum Institute (API) classification standards for PCMOs, SAE 5W-20, 5W-30 or 10W-30 oils must have volatilities as measured by gas chromatography distillation (GCD) of no more than 17%, or Noack volatilities of no more than 22%. C10M171/02- Specified values of viscosity or viscosity index.containing ingredients which are physically well-defined but for which the chemical nature is either unspecified or only very vaguely indicated containing as base-material, thickener or additive, ingredients which are characterised exclusively by their numerically specified physical properties, i.e. C10M171/00- Lubricating compositions characterised by purely physical criteria, e.g.
C10M101/00- Lubricating compositions characterised by the base-material being a mineral or fatty oil.C10M177/00- Special methods of preparation of lubricating compositions Chemical modification by after-treatment of components or of the whole of a lubricating composition, not covered by other classes.C10M- LUBRICATING COMPOSITIONS USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION.
C10- PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MONOXIDE FUELS LUBRICANTS PEAT.
Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.) Filing date Publication date Priority claimed from US60/164,407 external-priority Application filed by Exxonmobil Research And Engineering Company filed Critical Exxonmobil Research And Engineering Company Priority to JP2001537432A priority Critical patent/JP2003514099A/en Priority to AU14623/01A priority patent/AU1462301A/en Priority to KR1020027005940A priority patent/KR20020051932A/en Priority to CA002390229A priority patent/CA2390229A1/en Priority to EP00976916A priority patent/EP1238045A1/en Publication of WO2001034735A1 publication Critical patent/WO2001034735A1/en Links Deane Original Assignee Exxonmobil Research And Engineering Company Priority date (The priority date is an assumption and is not a legal conclusion. Inventor Hans Kennard Crosthwait Christopher John May Barry C. Google Patents WO2001034735A1 - Method for optimizing fuel economy of lubricant basestocks WO2001034735A1 - Method for optimizing fuel economy of lubricant basestocks
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