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API Gear Oil Specifications

American Petroleum Institute (API) have a number of gearbox specifications that are highly regarded within the motoring world. If you are looking for a specific API oil specification then you will find Opie Oils extensive range below.

Making sure that you get the correct oil for your vehicle will increase the life span, the performance and shift quality of your gearbox.

You'll find what specification gear oil your vehicle requires in your handbook, if you're still not sure, contact the Opie Experts for a custom recommendation.

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152 Products (Viewing: 60 - 120 of 152)

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Millers Oils Vintage Millerol 30 Monograde Mineral Engine Oil

Millers Oils Vintage Millerol 30 Monograde Mineral Engine Oil

Opie Price
£15.95
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Millers Oils Vintage Millerol 40 Monograde Mineral Engine Oil

Millers Oils Vintage Millerol 40 Monograde Mineral Engine Oil

Opie Price
£15.95
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Amsoil Synthetic Manual Transmission & Transaxle Gear Lube 75W-90

Amsoil Synthetic Manual Transmission & Transaxle Gear Lube 75W-90

1 US Quart

Opie Price
£21.95
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Millers Oils EE Performance MTF 75w90 Gear Oil

Millers Oils EE Performance MTF 75w90 Gear Oil

RRP £29.99
£26.95
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Castrol TRANSMAX Axle EPX 80W-90 Multipurpose Axle Fluid

Castrol TRANSMAX Axle EPX 80W-90 Multipurpose Axle Fluid

Opie Price
£10.99
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RED LINE Synthetic Gear Oil 75W-110 GL5

RED LINE Synthetic Gear Oil 75W-110 GL5

1 US Quart (0.946 litre)

Opie Price
£29.95
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Castrol TRANSMAX Limited Slip Z 85W-90 Mineral Axle Fluid

Castrol TRANSMAX Limited Slip Z 85W-90 Mineral Axle Fluid

1 Litre

Opie Price
£13.99
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Liqui Moly GL5 SAE 85W-90 Mineral Based Hypoid Gear Oil

Liqui Moly GL5 SAE 85W-90 Mineral Based Hypoid Gear Oil

1 Litre - SKU 1035

Opie Price
£13.99
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Castrol TRANSMAX Manual EP 80W-90 Mineral Transmission Fluid

Castrol TRANSMAX Manual EP 80W-90 Mineral Transmission Fluid

Opie Price
£11.95
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Motul 90 PA Mineral Limited Slip Differential (LSD) Oil

Motul 90 PA Mineral Limited Slip Differential (LSD) Oil

1 Litre

Opie Price
£18.95
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Castrol TRANSMAX Universal 75W-90 Multipurpose Gear Oil

Castrol TRANSMAX Universal 75W-90 Multipurpose Gear Oil

Opie Price
£18.95
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Motul Motylgear 75w-85 Technosynthese Transmission Fluid

Motul Motylgear 75w-85 Technosynthese Transmission Fluid

1 Litre

Opie Price
£14.95
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Mobil Mobilube PTX 75w-90 Multipurpose Gear Oil
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Mobil Mobilube PTX 75w-90 Multipurpose Gear Oil

20 Litres (Drum)

Opie Price
£312.95
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Fuchs Agrifarm STO 15W-30 High Performance Multifunctional Tractor Oil
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Fuchs Agrifarm STO 15W-30 High Performance Multifunctional Tractor Oil

20 Litres

Opie Price
£88.99
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Millers Oils Trident Professional MTF 75w-90 Semi Synthetic Transmission Oil

Millers Oils Trident Professional MTF 75w-90 Semi Synthetic Transmission Oil

Opie Price
£14.99
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Fuchs Titan Race Gear 90 LS High Performance Gear And Limited Slip Diff Oil

Fuchs Titan Race Gear 90 LS High Performance Gear And Limited Slip Diff Oil

1 Litre

Opie Price
£13.99
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Millers Oils EE Performance MTF 75w85 Gear Oil

Millers Oils EE Performance MTF 75w85 Gear Oil

Opie Price
£29.95
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Millers Oils Motorsport CTV Mini 20w-50 Nanodrive Semi Synthetic Engine & Transmission Oil

Millers Oils Motorsport CTV Mini 20w-50 Nanodrive Semi Synthetic Engine & Transmission Oil

RRP £67.99
£50.95
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Mobil 75W-90 Multi-Vehicle Manual Transmission Fluid

Mobil 75W-90 Multi-Vehicle Manual Transmission Fluid

1 Litre

Opie Price
£16.99
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Millers Oils Motorsport CRX 75w-80 NT+ Nanodrive Fully Synthetic Transmission Oil

Millers Oils Motorsport CRX 75w-80 NT+ Nanodrive Fully Synthetic Transmission Oil

RRP £24.99
£20.95
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TotalEnergies Traxium Dual 9 FE 75w-90 Commercial Vehicle Gear Oil

TotalEnergies Traxium Dual 9 FE 75w-90 Commercial Vehicle Gear Oil

1 Litre

Opie Price
£16.99
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Millers Oils Ginetta Tech LS 75w-90 Fully Synthetic Competition Gear Oil

Millers Oils Ginetta Tech LS 75w-90 Fully Synthetic Competition Gear Oil

1 Litre

Opie Price
£33.95
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Millers Oils Ginetta Tech 75w-90 Fully Synthetic Competition Gear Oil

Millers Oils Ginetta Tech 75w-90 Fully Synthetic Competition Gear Oil

1 Litre

Opie Price
£30.95
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Febi Bilstein SAE 75W-90 GL-4/5 Gear Oil (170140)
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Febi Bilstein SAE 75W-90 GL-4/5 Gear Oil (170140)

20 Litres

Opie Price
£249.95
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Febi Bilstein SAE 90 GL-4 Gear Oil (170153)
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Febi Bilstein SAE 90 GL-4 Gear Oil (170153)

20 Litres

Opie Price
£97.99
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Febi Bilstein SAE 80W-90 GL-4/5 Gear Oil (170166)
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Febi Bilstein SAE 80W-90 GL-4/5 Gear Oil (170166)

20 Litres

Opie Price
£154.99
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RED LINE High Performance 75W-85 GL-5 Fully Synthetic Gear Oil

RED LINE High Performance 75W-85 GL-5 Fully Synthetic Gear Oil

1 US Quart (0.946 Litre)

RRP £28.20
£27.95
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Castrol TRANSMAX Axle EPX 85W-140 Multipurpose Axle Fluid

Castrol TRANSMAX Axle EPX 85W-140 Multipurpose Axle Fluid

Opie Price
£38.95
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Castrol TRANSMAX Manual Z Long Life 75W-80 Fully Synthetic Transmission Fluid
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Castrol TRANSMAX Manual Z Long Life 75W-80 Fully Synthetic Transmission Fluid

20 Litres

Opie Price
£240.95
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Mobil Mobilube HD 80W-90 GL-5 Heavy Duty Gear Oil
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Mobil Mobilube HD 80W-90 GL-5 Heavy Duty Gear Oil

20 Litres

Opie Price
£129.95
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Millers Oils NANODRIVE Hewland UPB 75w-90 LS Transmission Oil
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Millers Oils NANODRIVE Hewland UPB 75w-90 LS Transmission Oil

5 Litres - CLEARANCE

Was £229.99
£187.42
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Millers Oils NANODRIVE Hewland UPB 75w-140 LS Transmission Oil
Clearance

Millers Oils NANODRIVE Hewland UPB 75w-140 LS Transmission Oil

1 Litre - CLEARANCE

Was £46.99
£36.97
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Comma MV MTF Plus 75w Fully Synthetic Manual Transmission Fluid

Comma MV MTF Plus 75w Fully Synthetic Manual Transmission Fluid

Opie Price
£17.95
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Petronas Tutela MTF 900 75W-70 Fully Synthetic Manual Transmission Fluid

Petronas Tutela MTF 900 75W-70 Fully Synthetic Manual Transmission Fluid

1 Litre

Opie Price
£27.95
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Febi Bilstein Gear Oil SAE 70W-80 GL-5 (184247)

Febi Bilstein Gear Oil SAE 70W-80 GL-5 (184247)

1 Litres

Opie Price
£24.95
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Castrol TRANSMAX Manual V 75W-80 Fully Synthetic Transmission Fluid

Castrol TRANSMAX Manual V 75W-80 Fully Synthetic Transmission Fluid

1 Litre

Opie Price
£21.95
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Motul Drive Supra 80w-90 Heavy Duty Transmission Fluid

Motul Drive Supra 80w-90 Heavy Duty Transmission Fluid

1 Litre

Opie Price
£15.95
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Millers Oils Vintage Millerol 50 Monograde Mineral Engine Oil

Millers Oils Vintage Millerol 50 Monograde Mineral Engine Oil

RRP £46.99
£41.95
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Shell Spirax S5 ATE 75W-90 Synthetic Technology High Performance Gear Oil
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Shell Spirax S5 ATE 75W-90 Synthetic Technology High Performance Gear Oil

20 Litres

Opie Price
£341.95
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Castrol TRANSMAX Manual FE 75W Fully Synthetic Transmission Fluid

Castrol TRANSMAX Manual FE 75W Fully Synthetic Transmission Fluid

1 Litre

Opie Price
£19.99
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Millers Oils Vintage Green Gear Oil 90 GL1

Millers Oils Vintage Green Gear Oil 90 GL1

Opie Price
£15.95
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RED LINE High Performance Synthetic MT-85 75W85 GL-4 Gear Oil

RED LINE High Performance Synthetic MT-85 75W85 GL-4 Gear Oil

1 US Quart (0.946 Litre)

RRP £28.20
£27.95
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Amsoil Synthetic Tractor Hydraulic/Transmission Oil SAE 5W-30

Amsoil Synthetic Tractor Hydraulic/Transmission Oil SAE 5W-30

1 US Quart

Opie Price
£19.99
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Fuchs Titan Supergear Plus SAE 80W-90 High Performance Gear Oil
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Fuchs Titan Supergear Plus SAE 80W-90 High Performance Gear Oil

Opie Price
£100.99
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Motul Multi DCTF Synthetic Dual Clutch Transmission Fluid (Dry & Wet)

Motul Multi DCTF Synthetic Dual Clutch Transmission Fluid (Dry & Wet)

1 Litre

RRP £19.96
£18.95
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TotalEnergies Traxium Axle 8 80W-90 Gear Oil

TotalEnergies Traxium Axle 8 80W-90 Gear Oil

1 Litre

Opie Price
£16.99
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TotalEnergies Traxium Axle 7 80W-90 Gear Oil

TotalEnergies Traxium Axle 7 80W-90 Gear Oil

Opie Price
£12.95
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Castrol Transmax Agri MP 15W-40
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Castrol Transmax Agri MP 15W-40

20 Litres

Opie Price
£152.95
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Silkolene BOA 80W-90 For Gearboxes And Final Drives GL4 GL5

Silkolene BOA 80W-90 For Gearboxes And Final Drives GL4 GL5

1 Litre

Opie Price
£13.99
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Elf Tranself NFX SAE 75W EP Synthetic Technology Transmission Fluid

Elf Tranself NFX SAE 75W EP Synthetic Technology Transmission Fluid

Opie Price
£20.95
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Mobil EP 75W-80 Multi-Vehicle Mineral Manual Transmission Fluid

Mobil EP 75W-80 Multi-Vehicle Mineral Manual Transmission Fluid

1 Litre

Opie Price
£16.99
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Mobil 75W Multi-Vehicle Manual Transmission Fluid

Mobil 75W Multi-Vehicle Manual Transmission Fluid

1 Litre

Opie Price
£16.99
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Millers Oils EE Performance MTF 75w Gear Oil

Millers Oils EE Performance MTF 75w Gear Oil

Opie Price
£20.95
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Castrol Transmax Manual Long Life 75W-85 Transmission Fluid
Free Shipping

Castrol Transmax Manual Long Life 75W-85 Transmission Fluid

20 Litres

Opie Price
£281.95
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Febi Bilstein SAE 75W-80 GL-4 Gear Oil (170126)
Free Shipping

Febi Bilstein SAE 75W-80 GL-4 Gear Oil (170126)

20 Litres

Opie Price
£219.95
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RED LINE SuperLight ShockProof Gear Oil 70w-75

RED LINE SuperLight ShockProof Gear Oil 70w-75

1 US Quart (0.946 litre)

RRP £30.60
£28.99
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Castrol TRANSMAX Manual EP 80W Mineral Transmission Fluid

Castrol TRANSMAX Manual EP 80W Mineral Transmission Fluid

Opie Price
£10.99
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RED LINE Synthetic Gear Oil 75W-90NS GL5 (non Limited Slip)

RED LINE Synthetic Gear Oil 75W-90NS GL5 (non Limited Slip)

1 US Quart (0.946 litre)

RRP £28.20
£27.95
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RED LINE Synthetic Gear Oil 80w-140 GL5

RED LINE Synthetic Gear Oil 80w-140 GL5

1 US Quart (0.946 litre)

RRP £28.20
£27.95
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RED LINE Synthetic Manual Transmission Lubricant MTL 75W-80 GL4

RED LINE Synthetic Manual Transmission Lubricant MTL 75W-80 GL4

1 US Quart (0.946 litre)

Opie Price
£34.99
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Price Beater
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If you are looking for a specific API gear oil specification, take a look at our extensive range here.
Free UK delivery £80+ (geographic restrictions apply)
60 Day Returns
Free Expert Advice
No Leak Guarantee
01209 202944