On-vehicle evaluation of oil formulation

Details On-vehicle evaluation of oil formulation On-vehicle evaluation of oil formulation

2009-05-26

2011-12-27

McCall, Eric S (Department: 2855)

Measuring and testing

Internal combustion engine or related engine system or...

Lubricant condition

C073S010000, C073S053050

Reexamination Certificate

active

08082776

ABSTRACT:
This invention is a method for determining the quality of lubrication oil added to a quantity of used oil in an operating engine or mechanism such as occurs during an oil change or when additional oil is added to maintain the vehicle manufacturer's specified total volume of oil. The method is based on identifying the electrical resistivity characteristics of the oil addition, representative of both the base oil formulation and its additive package, and, through comparison with previously-generated resistivity data on multiple oils identifying the oil addition. The added oil may then be compared with manufacturer specifications for the specific application to determine whether it meets recommended manufacturer requirements.

REFERENCES:
patent: 4845469 (1989-07-01), Benda
patent: 6922064 (2005-07-01), Halalay et al.
patent: 7362110 (2008-04-01), Halalay et al.
patent: 7370514 (2008-05-01), Halalay et al.
patent: 7835875 (2010-11-01), Halalay et al.
patent: 7940060 (2011-05-01), Halalay et al.
patent: 2002/0162385 (2002-11-01), Ismail et al.
patent: 2006/0232267 (2006-10-01), Halalay et al.
patent: 2010/0250156 (2010-09-01), Halalay et al.

Affiliated with

Also associated with

Rating

On-vehicle evaluation of oil formulation does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with On-vehicle evaluation of oil formulation, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and On-vehicle evaluation of oil formulation will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4297858