Effects of Lubricant Composition on Fuel Efficiency in Modern Engines

Paper #:
  • 951037

Published:
  • 1995-02-01
Citation:
Inoue, K., Tominaga, E., Akiyama, K., and Ashida, T., "Effects of Lubricant Composition on Fuel Efficiency in Modern Engines," SAE Technical Paper 951037, 1995, https://doi.org/10.4271/951037.
Pages:
11
Abstract:
A bench engine test for evaluating the fuel efficiency of automotive crankcase oils using modern engines was developed. The fuel consumption was primarily proportional to the viscosity of the oils down to 5 mm2/s at operating temperatures, indicating that the use of low-viscosity oil was effective in improving fuel efficiency. This may be because the oil film would be formed easily, since sliding parts, such as valve train systems, in modern engines are finely finished. Organo molybdenum dithiocarbamates were effective in improving fuel efficiency at high temperature. A 2.7% improvement in fuel efficiency relative to conventional SAE 10W-30 oils was achieved by the combination of low-viscosity SAE 5W-20 oils and organo molybdenum dithiocarbamates under constant operating conditions with engine speed 1,500 rpm and torque 37.2 N•m.
Access
Now
SAE MOBILUS Subscriber? You may already have access.
Buy
Select
Price
List
Download
$27.00
Mail
$27.00
Members save up to 40% off list price.
Share
HTML for Linking to Page
Page URL

Related Items

Training / Education
2018-02-20