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Shell 550072758 Spirax S2 G 80W-90, Gear/Transmission Oils - 20 Litre
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BG ATC Plus® Automatic Transmission Conditioner - 177ml - 3106E
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Fortron Advanced Oil Guard, 325 ml - Pack of 30
Total Price: £432.34 ADD ALL three TO CART
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Technical Specification
PRODUCT NUMBER PRD00003003PRD00003004PRD00002307PRD00003251PRD00002306
Density, 15°C 0.8920.8920.8930.8960.893
Flash Point (COC) 178178214173214
Kinematic Viscosity @40°C 145.4145.4168168
Pour Point -24-24-33-24-33
SAE 80W-9080W-9080w-9080W-9080w-90
Volume 2020820208208
Viscosity Index 9999108101108
Oil Type Fully SyntheticFully SyntheticFully Synthetic
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Q 1. What transmissions and axles is Shell Spirax S2 G 80W-90 designed for?

A. Shell Spirax S2 G 80W-90 is for rear axles, manual transmissions and gear sets requiring an API GL-4 SAE 80W-90 gear oil with comprehensive component protection.

Q 2. Is Shell Spirax S2 G 80W-90 the same as Shell Spirax G?

A. Yes, Shell Spirax S2 G 80W-90 was previously named Shell Spirax G 80W-90.

Q 3. What is an API/ACEA classification?

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.

Q 4. What performance classifications does Shell Spirax S2 G 80W-90 meet?

A. Shell Spirax S2 G 80W-90 meets API GL-4; and SAE J306.

Q 5. What is the difference between Shell Spirax S2 G and S2 A?

A. Both are Shell Spirax S2 mineral automotive gear oils. S2 G (this product family) is the API GL-4 mild-EP range for manual transmissions and gear sets. S2 A is the API GL-5 hypoid axle range for differentials and final drives subject to higher shock loading.

Q 6. What is the difference between API GL-4 and GL-5?

A. API GL-4 is the performance category for manual transmission gear oils with moderate EP additive levels. API GL-5 is the higher-EP category for hypoid axles. The two are not interchangeable — Shell Spirax S2 G (this product) is GL-4 for manual transmissions.

Q 7. What is an OEM Specification?

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.

Q 8. What is an OEM Approval?

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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