LEADER A3/B4 10W-40

LEADER A3/B4 10W-40 is fully synthetic multigrade lubricating oil for use in engines of cars and light commercial vehicles.

It combines high resistance to oxidation to optimise the change period, and a viscosity which facilitates vehicle starting, thus reducing wear.

No	Information	Unit	Method	Index
1	Density at 15°C	g/mL	ASTM D 4052	0.87
2	Viscosity at 100°C	cSt	ASTM D 445	13.7
3	Viscosity at 40°C	cSt	ASTM D 445	90
4	Viscosity at -25°C	cSt	ASTM D 5293	Below 7,000
5	Viscosity index	-	ASTM D 2270	156
6	Flash point, open cup	°C	ASTM D 92	Above 215
7	Dropping point	°C	ASTM D 97	-39
8	Total alkalinity index	mgKOH/g	ASTM D 2896	10.7
9	Viscosity at 100°C after Bosch injector cutting	cSt	CEC-L-14-93	Above 12.5
10	Evaporation level after being kept at 250°C for 1 hour	% weight	CEC-L-40-93	Below 13

Technical document: LEADER_A3_B4_10W40

Description

Synthetic based multigrade oil; it can be used in the petrol and diesel engines of most vehicle manufacturers.
Its outstanding features include resistance to the formation of deposits at high temperatures and of sludge at low temperatures, thus keeping the engine clean and increasing its durability.
As a lubricant it is resistant to the loss of viscosity that occurs with some multigrade oils during their use. Thus the engine is kept properly lubricated during the entire period that the oil is used.