WEBMay 1, 2008 · HTHS is High Temp High Shear is a test method to mesure oil vis under "High Temp High Shear" conditions that would be useful in a engine such as valve train or bearing areas. There is a Minimium HTHS vis for most multi grade oils there is NO maximium though so a oil could be a 5/30 and be way high in HTHS vis which …
WEBApr 29, 2019 · HTHS dynamic viscosity is the current industry standard that best predicts fluid behavior in HTHS environments. It is designed to ensure engine lubricants maintain sufficient film strength to prevent excessive wear under engine operating conditions, while also allowing engine lubricants to have low enough viscosity to deliver fuel efficiency ...
DA:41PA:58MOZ Rank:25
Low HTHS oils: the art of balancing fuel efficiency and engine
WEBJun 29, 2018 · Q8Oils offers low HTHS engine oils for the PCMO- and HDDO market that reduce fuel consumption while maintaining engine protection. All over the world stringent governmental vehicle regulations are pushing the boundaries of fuel efficiency and reduced CO2-emissions.
DA:100PA:20MOZ Rank:38
Why are low HTHS oils becoming more important? | Afton Chemical
WEBMay 22, 2021 · Lower HTHS oil demand is expected to ramp up over the coming years to meet tougher emissions and fuel economy requirements. Wherever you are on the timeline, Afton is well positioned to help you make a smooth transition with the right balance between TCO and performance.
DA:10PA:99MOZ Rank:21
Impact of High Temperature High Shear (HTHS) Viscosity - Lubrizol
WEBAug 23, 2019 · Global governmental vehicle regulations call for improved fuel efficiency and reduced greenhouse gas emissions. One of the ways this can be enabled is through the use of lower high temperature high shear viscosity engine (HTHS) lubricants alongside more modern engine design and technologies.
DA:11PA:13MOZ Rank:92
Difference Between Viscosity Grade vs HTHS Viscosity - Lubrizol
WEBApr 14, 2019 · HTHS measures the lubricant’s resistance to flow at elevated temperatures under constant shear and high speeds between moving parts which have narrow tolerances—the lower the measured number, the lower the resistance to flow and the higher the anticipated fuel efficiency benefits.
DA:59PA:59MOZ Rank:25
Engine Oils with Reduced High Temperature High Shear …
WEBJun 17, 2022 · Performance: According to Shell analysis, oils with a HTHS viscosity of 2.9 mPas can provide fleet operators with an approximate 1 % fuel efficiency benefit (compared to a premium SAE 5W-30 engine oil with a standard low HTHS viscosity of 3.5 mPas) without compromising engine or component protection.
DA:63PA:99MOZ Rank:60
Study of HTHS Viscosity of Modern Motor Oils - ScienceDirect
WEBJan 1, 2016 · The article presents the results of experimental studies of HTHS viscosity of modern motor oils belonging to different viscosity classes. Changes in viscosity due to shear rate increase from 10 6 s –1 to 1,8 10 6 s –1 are presented for oils of classes SAE 5W-30, 5W-40, 5W-50.
WEBOct 16, 2010 · High Temperature High Shear viscosity is a (the most?) important specification for each oil viscosity. But I’m not sure how it relates to everyday engine protection. Using 20 weight oil as an example, my understanding is: * 100C viscosity should be in the range of 6.9-9.2 cSt. * HTHS must be at least 2.6 cP @ 150C.
WEBJun 1, 2017 · What is HTHS? HTHS ( High Temperature High Shear) viscosity is the way we measure the ability of fully heated oil (150°C) to run efficiently between the narrow openings of fast-moving engine parts: for example, between piston ring and lining, valve train, gearwheel contact points, and so on.