Engine transmission oil

Choosing engine oil, factors to consider

SAE viscosity grade
Correct type of product
Activity level, performance
Automotive Standard Associations
API – American Petroleum Institution
JASO – Japan Automotive Standards Organization
ILSAC – International Lubricant Standardization and Approval Committee
ACEA – Association des Constructeurs Européens d’Automobiles
OEMs – engine manufacturers like VW, MB, BMW, Porsche etc.

Choose the right viscosity grade:

High viscosity:

Advantages:
Lubricates well
Large load bearing
Smooth machine
Defect:
Hard to boot
Reduce the engine power
Poor cooling, hotter machine
Fuel consumption

High viscosity oil:

Large load
High temperature
Low speed
Old car

Low viscosity oils:

Small load
Low temperature
High speed
New car
Old car reworked machine