The ability to maintain a continuous layer of oil between two metal surfaces is an important attribute of an engine oil to provide fluid lubricant. Friction and wear result when this lubricant film is broken under high load conditions. This is where Esters excel in providing boundary lubrication. Ester has the propensity to reduce friction where other base oils fail.
Ester’s molecules: consist of Oxygen (O), which has a positive polarity, and Hydrogen (H), which has a negative polarity. These two molecules electrically adsorb onto the metal surfaces and form a layer known as ad molecule film. It is this ad molecule film that makes Esters stand out from other oils (where film is created by viscosity).
The difference is obvious in its lubrication performance when starting the engine. With oils that depend on viscosity for film strength, pressure and oil will drop when the engine stops. When the engine is restarted, the film between the two metals no longer exists and this results to a dry start. Ad molecule film on the other hand, does not rely on viscosity for fluid lubrication. Therefore it is able to continuously lubricate between the two metals even if the engine stops.
In city driving, where there are frequent start and stop, these car engines are subjected to more stress than in racing. It is therefore more critical that the appropriate engine oil is chosen to protect car engines.
Full ACEA specs are:
A1 Fuel Economy Petrol
A2 Standard performance level
A3 High performance and / or extended drain
B1 Fuel Economy diesel
B2 Standard performance level
B3 High performance and / or extended drain
B4 For direct injection passenger car diesel engines
E1 Non-turbo charged light duty diesel
E2 Standard performance level
E3 High performance extended drain
E4 Higher performance and longer extended drain
E5 (1999) High performance / long drain plus American/API performances. – This is ACEAs first attempt at a global spec.
QMAX advanced additive technologies, enable its products to outperform leading synthetic and conventional lubricants. These unique chemistries strengthen the base oil for improved performance. They also create an ionic bond that adheres to metal parts for continuous protection.
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