Castrol MAGNATEC SUV 5W-30 A3/B4 Full Synthetic Engine Oil Review

The Castrol MAGNATEC SUV 5W-30 A3/B4 is an original synthetic engine oil specifically created for SUVs; with the extension of its level of abrasion resistance against hot spots and increase of its thermal stability under high-temperature or gasoline, diesel, or CNG power vehicles. By its DUALOCK Technology and obedience to industry specifications adopted for the non- stop SUV protection and every start, the engine oil targets at providing non-stop SUV protection from the very beginning. Here, we’ll be discussing the product specification as well as features. The good and the bad side will also be shown. And at the end, I will give the verdict on the product.


Vehicle Service TypeDiesel, Petrol, CNG
Flash Point29.5 Degrees Celsius
Liquid Volume3.5 Litres
Package InformationJug
ManufacturerCastrol India Limited
ModelCastrol MAGNATEC SUV 5W-40 A3/B4
Product Dimensions1.9 x 1.3 x 2.7 cm; 3.5 kg
Item Weight3 kg 500 g
Manufacturer Part No.3421148
Country of OriginIndia


Non-Stop SUV Protection: The full synthetic formulation gives engine SUVs a shield of all-in protection from back to ignition, thereby minimizing the need for constant and excessive maintenance, and also prolonging their life spans.

DUALOCK Technology: Realizing the crucial role played by Engine oil in handling wear of an Engine during start-stop cycles, warm-up, and heavy load operation, DUALOCK Technology delivers 50% better protection, thus fostering responsible engineering as well as maintenance service of the engine.

Versatile Compatibility: Proper for fitting vehicle in SUV with petrol, diesel or CNG engines, utilizing API SN, ACEA A3/B4 and A3/B3, providing concreteness and convenientliness for both of different vehicle types.


Limited Flash Point: The flash point of 29.5 degrees Celsius, which implies the close proximity of the boiling point and could increase the risk of volatilities and vaporization under high temperature conditions, is an additional concern.

Potential Overkill for Certain Vehicles: Though it does wonderful job of contributing to extended engine life for SUVs and other high duty vehicles, it could be considered as an overkill for low-mileage models of compact cars and economical cars with the economy in mind, potentially leading to higher costs for the owners.


The Castrol MAGNATEC SUV 5W-30 A3/B4 Engine Oil, which guarantees SUV’s high performance and protection, is highly appreciated due to its dual lock technology and modern full synthetic formulation. In this sense, it offering (a brand with) flexible compatibility and easy use (for packaging), it fits for SUV owners who look for oil (which is reliable) (to run) their travelling machines. Nonetheless, its low flash point for the case of smaller vehicles as well compensationless is downside. Finally, SUV operators who strive for motor longevity and efficiency would certainly find Castrol engine oil notable in this regard.

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