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Castrol - Transmax Universal LongLife 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: £446.78 ADD ALL three TO CART
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Technical Specification
PRODUCT NUMBER PRD00003003PRD00003004PRD00003251PRD00004642
Density, 15°C 0.8920.8920.8960.9
Flash Point (COC) 178178173175
Kinematic Viscosity @40°C 145.4145.4146
Pour Point -24-24-24-27
SAE 80W-9080W-9080W-9080W-90
Volume 2020820820
Viscosity Index 9999101100
Oil Type Fully SyntheticMineral
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Q 1. What transmissions and axles is Castrol Transmax Universal LL 80W-90 designed for?

A. Castrol Transmax Universal LL 80W-90 is positioned as a universal fluid for manual transmissions and axles in commercial vehicle and passenger car applications, with the multigrade chemistry supporting operation across varied ambient temperatures.

Q 2. 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 3. What performance classification does Castrol Transmax Universal LL 80W-90 meet?

A. Castrol Transmax Universal LL 80W-90 meets API GL-4.

Q 4. 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 5. 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.

Q 6. What OEM manufacturer approvals does Castrol Transmax Universal LL 80W-90 carry?

A. Castrol Transmax Universal LL 80W-90 carries MAN M341 Z; MAN M342 M; and ZF TE-ML 02B.

Q 7. What is Castrol Smooth Drive Technology?

A. Smooth Drive Technology is Castrol's proprietary formulation in the Transmax range, supporting smoother gear engagement and protecting against pitting alongside thermal and oxidative stability.

Q 8. What is the difference between Transmax Universal LL 80W-90 and 75W-90?

A. Both are Castrol Transmax Universal LongLife universal manual transmission and axle fluids. The 80W-90 (this product) is a mineral-based API GL-4 fluid. The 75W-90 (PRD00002308) is a fully synthetic API GL-4/GL-5 fluid with SAE J2360 approval and lighter viscosity for fuel-efficiency.

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