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API GL-4 Gear Oil

API GL-4 oils are for various conditions - light to heavy. Designed for bevel and hypoid gears which have small displacement of axes, and axle units. Recommended for non-synchronized gearboxes of lorries, tractors and buses and for main and other gears of all vehicles. These oils are basic for synchronized gearboxes.

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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104 Products (Viewing: 1 - 60 of 104)

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Mobil Mobilube 1 SHC 75W-90 Fully Synthetic High Performance Manual Gearbox Oil

Mobil Mobilube 1 SHC 75W-90 Fully Synthetic High Performance Manual Gearbox Oil

Opie Price
£15.95
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Millers Oils Motorsport CRX 75w-90 NT+ Nanodrive Fully Synthetic Transmission Oil

Millers Oils Motorsport CRX 75w-90 NT+ Nanodrive Fully Synthetic Transmission Oil

RRP £22.95
£17.95
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Fuchs TITAN SINTOFLUID FE SAE 75W Synthetic Manual Transmission Oil

Fuchs TITAN SINTOFLUID FE SAE 75W Synthetic Manual Transmission Oil

1 Litre

RRP £11.92
£10.99
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Castrol TRANSMAX Manual Multivehicle 75W-90 Fully Synthetic Transmission Fluid

Castrol TRANSMAX Manual Multivehicle 75W-90 Fully Synthetic Transmission Fluid

1 Litre

Opie Price
£17.95
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Fuchs Titan Race SYNCHRO 75W-90 Fully Synthetic Gear Oil

Fuchs Titan Race SYNCHRO 75W-90 Fully Synthetic Gear Oil

1 Litre

Opie Price
£19.99
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TotalEnergies Traxium Gear 8 75W-80 Manual Transmission Gear Oil

TotalEnergies Traxium Gear 8 75W-80 Manual Transmission Gear Oil

1 Litre

Opie Price
£9.95
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RED LINE MT90 75W-90 GL4 Synthetic Manual Gear Oil

RED LINE MT90 75W-90 GL4 Synthetic Manual Gear Oil

Opie Price
£35.95
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Millers Oils Motorsport CRX LS 75w-90 NT+ Nanodrive Fully Synthetic Transmission Oil

Millers Oils Motorsport CRX LS 75w-90 NT+ Nanodrive Fully Synthetic Transmission Oil

RRP £21.95
£17.95
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Motul HD 80w-90 Extreme Pressure Mineral Transmission & Differential Fluid

Motul HD 80w-90 Extreme Pressure Mineral Transmission & Differential Fluid

RRP £14.99
£10.99
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Motul Gear 300 75w-90 Fully Synthetic Racing Transmission & Differential Oil

Motul Gear 300 75w-90 Fully Synthetic Racing Transmission & Differential Oil

RRP £27.98
£20.95
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RED LINE Synthetic Manual Transmission MT-LV 70W/75W

RED LINE Synthetic Manual Transmission MT-LV 70W/75W

1 US Quart (0.946 litre)

Opie Price
£28.99
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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)

RRP £28.20
£27.95
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Motul Motylgear 75w-80 EP Technosynthese Car Transmission Fluid

Motul Motylgear 75w-80 EP Technosynthese Car Transmission Fluid

RRP £17.99
£11.95
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Millers Oils XF Premium MTF 75w-90 Fully Synthetic Transmission Oil

Millers Oils XF Premium MTF 75w-90 Fully Synthetic Transmission Oil

RRP £13.95
£11.95
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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

RRP £12.95
£10.99
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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 £25.00
£17.95
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Millers Oils Motorsport CRX LS 75w-140 NT+ Nanodrive Fully Synthetic Transmission Oil

Millers Oils Motorsport CRX LS 75w-140 NT+ Nanodrive Fully Synthetic Transmission Oil

RRP £23.95
£17.95
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Comma MV MTF Plus 75w-80 Fully Synthetic Manual Transmission Fluid

Comma MV MTF Plus 75w-80 Fully Synthetic Manual Transmission Fluid

Opie Price
£11.95
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Petronas Tutela Geartech MTF 75W-85 Fully Synthetic Manual Transmission Fluid

Petronas Tutela Geartech MTF 75W-85 Fully Synthetic Manual Transmission Fluid

1 Litre

Opie Price
£14.95
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Castrol Classic EP90 Mineral Based Multi-Purpose Extreme Pressure Oil

Castrol Classic EP90 Mineral Based Multi-Purpose Extreme Pressure Oil

Opie Price
£17.95
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Millers Oils Classic Gear Oil EP 80W-90 GL4

Millers Oils Classic Gear Oil EP 80W-90 GL4

RRP £12.95
£11.95
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Millers Oils Classic Mini Oil 20w-50 Engine Oil

Millers Oils Classic Mini Oil 20w-50 Engine Oil

RRP £38.95
£37.99
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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
£15.95
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Castrol TRANSMAX Universal LL 75W-90 Fully Synthetic Transmission Fluid

Castrol TRANSMAX Universal LL 75W-90 Fully Synthetic Transmission Fluid

Opie Price
£19.99
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Millers Oils Classic Gear Oil EP 140 GL4

Millers Oils Classic Gear Oil EP 140 GL4

Opie Price
£46.99
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Castrol TRANSMAX Universal 75W-90 Multipurpose Gear Oil

Castrol TRANSMAX Universal 75W-90 Multipurpose Gear Oil

Opie Price
£15.95
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Millers Oils Motorsport CRX 75w-140 NT+ Nanodrive Fully Synthetic Transmission Oil

Millers Oils Motorsport CRX 75w-140 NT+ Nanodrive Fully Synthetic Transmission Oil

RRP £21.95
£16.99
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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 £60.95
£43.99
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Amsoil Manual Synchromesh Transmission Fluid MTF

Amsoil Manual Synchromesh Transmission Fluid MTF

1 US Quart

Opie Price
£22.99
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Millers Oils XF Premium MTF 75w Fully Synthetic Transmission Oil

Millers Oils XF Premium MTF 75w Fully Synthetic Transmission Oil

Opie Price
£8.95
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Comma MV MTF Plus 75w-90 Fully Synthetic Manual Transmission Fluid

Comma MV MTF Plus 75w-90 Fully Synthetic Manual Transmission Fluid

Opie Price
£14.95
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Comma SX 75w-90 GL-5 Semi Synthetic Transmission Fluid

Comma SX 75w-90 GL-5 Semi Synthetic Transmission Fluid

Opie Price
£8.95
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Fuchs TITAN SINTOFLUID SAE 75W-80 Synthetic Manual Transmission Fluid

Fuchs TITAN SINTOFLUID SAE 75W-80 Synthetic Manual Transmission Fluid

RRP £14.20
£12.95
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Comma SX 75w-90 GL-4 Semi Synthetic Transmission Fluid

Comma SX 75w-90 GL-4 Semi Synthetic Transmission Fluid

Opie Price
£8.95
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Castrol TRANSMAX Manual EP 80W Mineral Transmission Fluid

Castrol TRANSMAX Manual EP 80W Mineral Transmission Fluid

Opie Price
£7.99
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Valvoline 75w-90 Full Synthetic Gear Oil

Valvoline 75w-90 Full Synthetic Gear Oil

1 Litre

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

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

RRP £89.95
£66.95
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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 £23.95
£19.99
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Millers Oils XF Premium MTF 75w-80 Fully Synthetic Transmission Oil

Millers Oils XF Premium MTF 75w-80 Fully Synthetic Transmission Oil

RRP £9.95
£9.95
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Castrol Classic EP140 Mineral Based Extreme Pressure Oil

Castrol Classic EP140 Mineral Based Extreme Pressure Oil

1 Litre

RRP £16.96
£15.95
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Millers Oils EE Performance MTF 75w85 Gear Oil

Millers Oils EE Performance MTF 75w85 Gear Oil

RRP £23.95
£20.95
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Gulf Competition Racing Gear Oil 75w-90
Clearance

Gulf Competition Racing Gear Oil 75w-90

Was £79.99
£57.34
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Fuchs Titan Gear Syn 75W-90 Semi Synthetic Driveline Oil

Fuchs Titan Gear Syn 75W-90 Semi Synthetic Driveline Oil

Opie Price
£11.95
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Millers Oils EE Performance MTF 75w Gear Oil

Millers Oils EE Performance MTF 75w Gear Oil

Opie Price
£19.99
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Castrol Transmax Manual Long Life 75W-85 Transmission Fluid
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Castrol Transmax Manual Long Life 75W-85 Transmission Fluid

20 Litres

Opie Price
£269.95
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Motul Gearbox 80w-90 EP Mineral Gear & Differential Oil

Motul Gearbox 80w-90 EP Mineral Gear & Differential Oil

1 Litre

Opie Price
£15.95
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Amsoil Synthetic SEVERE Gear Oil 75w-90

Amsoil Synthetic SEVERE Gear Oil 75w-90

Opie Price
£23.95
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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

RRP £34.00
£25.99
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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

RRP £29.99
£23.95
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Valvoline Gear Oil 75w-80

Valvoline Gear Oil 75w-80

1 Litre

Opie Price
£17.95
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Mobil Mobilube PTX 75w-90 Multipurpose Gear Oil
Free Shipping

Mobil Mobilube PTX 75w-90 Multipurpose Gear Oil

20 Litres (Drum)

Opie Price
£314.95
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Fuchs Agrifarm STO Plus 10W-30 High Quality Universal Super Tractor Oil
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Fuchs Agrifarm STO Plus 10W-30 High Quality Universal Super Tractor Oil

20 Litres

Opie Price
£89.95
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Valvoline Heavy Duty TDL Pro 75w-90 Full Synthetic Gear Oil

Valvoline Heavy Duty TDL Pro 75w-90 Full Synthetic Gear Oil

1 Litre

Opie Price
£26.95
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Motul HD 85w-140 Extreme Pressure Transmission & Differential Oil
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Motul HD 85w-140 Extreme Pressure Transmission & Differential Oil

20 Litres

Opie Price
£146.95
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Fuchs TITAN SINTOPOID LS SAE 75W-90 synthetic gear oil

Fuchs TITAN SINTOPOID LS SAE 75W-90 synthetic gear oil

1 Litre

RRP £17.26
£15.95
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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
£13.99
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Mobil 75W Multi-Vehicle Manual Transmission Fluid

Mobil 75W Multi-Vehicle Manual Transmission Fluid

1 Litre

Opie Price
£14.95
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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
£13.99
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Castrol Transmax Agri MP 15W-40
Free Shipping

Castrol Transmax Agri MP 15W-40

20 Litres

Opie Price
£141.95
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A wide selection of gear oil meeting the API GL-4 gear oil specification available for purchase here.
Free UK delivery £80+ (geographic restrictions apply)
60 Day Returns
Free Expert Advice
No Leak Guarantee
01209 202944