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A. Shell Helix Ultra Professional AJ-L 5W-30 is designed for high-performance diesel engines from Jaguar, Land Rover and Ford, particularly Jaguar and Land Rover diesel engines and Ford engines requiring an ACEA C1 specification.
A. Yes, Shell Helix Ultra Professional AJ-L 5W-30 is approved against the Jaguar Land Rover engine oil specification STJLR.03.5005.
A. Yes, Shell Helix Ultra Professional AJ-L 5W-30 meets the requirements of Ford WSS-M2C 934-B.
A. API and ACEA are the universal lubricant performance standards every reputable oil meets. They are your baseline check — match the code your handbook specifies (e.g., API CI-4 or ACEA E7 for heavy-duty diesel) and the oil is technically suitable for your machine. Every oil on our site lists its API and ACEA classifications.
A. Shell Helix Ultra Professional AJ-L 5W-30 meets ACEA C1.
A. Yes, Shell Helix Ultra Professional AJ-L 5W-30 is a fully synthetic motor oil.
A. Both are Shell Helix Ultra Professional oils for Jaguar Land Rover. AJ-L 0W-20 covers Jaguar Land Rover STJLR 51.5122 (gasoline, ACEA A5/B5). AJ-L 5W-30 (this product) covers STJLR.03.5005 (diesel, ACEA C1). Select per the specific JLR specification on the vehicle service manual.
A. Yes, ACEA C1 is the lowest-SAPS class for passenger cars — strictest phosphorus, sulphur and ash limits, suited to diesel engines fitted with diesel particulate filters (DPF).
A. An OEM Specification is the lubricant requirement set by a vehicle or equipment manufacturer (e.g., MB 228.3, VW 504.00). When an oil lists the code, the oil manufacturer has developed and tested it to meet the criteria the equipment manufacturer requires. Match the code in your handbook and you have a lubricant engineered for your machine.
A. An OEM Approval means the oil has been formally tested and signed off by the equipment manufacturer and listed on their official approved-products register (e.g., MB-Approval 228.3). An Approval confirms the oil is recognised by the equipment manufacturer for service use in their machines.
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