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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: 1 - 60 of 152)

Motul Gear Competition 75w-140 Fully Synthetic Racing Transmission & LS Differential Oil
Millers Oils Motorsport CRX 75w-90 NT+ Nanodrive Fully Synthetic Transmission Oil
RRP £22.95
£21.95
Price Beater
TotalEnergies Traxium Gear 8 75W-80 Manual Transmission Gear Oil
RED LINE MT90 75W-90 GL4 Synthetic Manual Gear Oil
Opie Price
£28.99
Price Beater
Motul Gear 300 75w-90 Fully Synthetic Racing Transmission & Differential Oil
Castrol TRANSMAX Limited Slip LL 75W-140 Fully Synthetic Hypoid Gear Oil
Castrol B 373 Racing Mineral Car Gearbox Oil
Petronas Tutela Geartech MTF 75W-85 Fully Synthetic Manual Transmission Fluid
Fuchs TITAN SINTOFLUID SAE 75W-80 Synthetic Manual Transmission Fluid
Elf Tranself NFX SAE 75W EP Synthetic Technology Transmission Fluid
Opie Price
£16.99
Price Beater
RED LINE Synthetic Manual Transmission Lubricant MTL 75W-80 GL4
Fuchs Titan Race SYN 5 75W-90 Fully Synthetic Gear Oil
Opie Price
£15.95
Price Beater
RED LINE Synthetic Manual Transmission MT-LV 70W/75W
Castrol TRANSMAX Manual Multivehicle 75W-90 Fully Synthetic Transmission Fluid
Fuchs Titan Race SYNCHRO 75W-90 Fully Synthetic Gear Oil
Fuchs Titan Sintopoid FE SAE 75W-85 Fully Synthetic Gear Oil
Liqui Moly GL5 SAE 75W-90 Fully Synthetic Gear Oil
Valvoline 75w-90 Full Synthetic Gear Oil
Millers Oils Motorsport CRX LS 75w-140 NT+ Nanodrive Fully Synthetic Transmission Oil
RRP £23.95
£17.95
Price Beater
RED LINE Synthetic Gear Oil 75W-90 GL5
RRP £28.20
£27.95
Price Beater
Castrol TRANSMAX Axle Long Life 75W-90 Fully Synthetic Rear Axle Fluid
RED LINE LightWeight ShockProof Gear Oil 75w-90

1 US Quart (0.946 litre)

RRP £30.60
£28.99
Price Beater
Mobil Mobilube 1 SHC 75W-90 Fully Synthetic High Performance Manual Gearbox Oil
Motul Motylgear 75w-90 Technosynthese Transmission & Differential Oil
Millers Oils Motorsport CRX 75w-140 NT+ Nanodrive Fully Synthetic Transmission Oil
RRP £21.95
£19.99
Price Beater
Comma MV MTF Plus 75w-80 Fully Synthetic Manual Transmission Fluid
Opie Price
£11.95
Price Beater
Millers Oils Classic Mini Oil 20w-50 Engine Oil
RRP £38.95
£37.99
Price Beater
Motul Multi DCTF Synthetic Dual Clutch Transmission Fluid (Dry & Wet)
Motul Gear Power 75w-80 Fully Synthetic Manual Transmission Fluid
Castrol Classic ST90 Monograde SAE90 Mineral Gear Oil
Castrol Classic EP140 Mineral Based Extreme Pressure Oil
Liqui Moly Top Tec MTF 5200 75W-80 Transmission Fluid
Amsoil Synthetic Manual Transmission & Transaxle Gear Lube 75W-90
Millers Oils Vintage Millerol 40 Monograde Mineral Engine Oil
Opie Price
£11.95
Price Beater
Millers Oils Classic Gear Oil EP 80W-90 GL4
RRP £12.95
£11.95
Price Beater
Millers Oils XF Premium MTF 75w-80 Fully Synthetic Transmission Oil
RRP £9.95
£9.95
Price Beater
Millers Oils Motorsport CRX 75w-80 NT+ Nanodrive Fully Synthetic Transmission Oil
RRP £23.95
£19.99
Price Beater
Comma EP 80w-90 GL-5 Mineral Manual Transmission Fluid
Opie Price
£7.99
Price Beater
Castrol TRANSMAX Manual V 75W-80 Fully Synthetic Transmission Fluid
Millers Oils XF Premium MTF 75w-90 Fully Synthetic Transmission Oil
RRP £13.95
£11.95
Price Beater
Liqui Moly GL5 LS SAE 75W-140 Fully Synthetic Hypoid Gear Oil
Opie Price
£31.99
Price Beater
Castrol Classic EP90 Mineral Based Multi-Purpose Extreme Pressure Oil
Millers Oils Motorsport CRX 75w NT+ Nanodrive Fully Synthetic Transmission Oil
RRP £89.95
£66.95
Price Beater
Fuchs Titan Gear Syn 75W-90 Semi Synthetic Driveline Oil
Opie Price
£10.99
Price Beater
Liqui Moly GL5 SAE 80W-90 Mineral Based Hypoid Gear Oil
Castrol TRANSMAX Limited Slip Z 85W-90 Mineral Axle Fluid
Liqui Moly Top Tec MTF 5100 75W Transmission Fluid
Motul Gear 300 LS 75w-90 Fully Synthetic Racing Limited Slip Differential Oil
Millers Oils Classic Differential Oil EP 90 GL5
Opie Price
£44.95
Price Beater
Millers Oils Classic Gear Oil EP 140 GL4
Opie Price
£46.99
Price Beater
Castrol TRANSMAX Manual FE 75W Fully Synthetic Transmission Fluid
Castrol TRANSMAX Manual Transaxle 75W-90 Fully Synthetic Transaxle Fluid
Fuchs Titan Supergear Plus SAE 80W-90 High Performance Gear Oil
Free Shipping
Opie Price
£99.95
Price Beater
Amsoil Synthetic SEVERE Gear Oil 75w-90
Opie Price
£24.95
Price Beater
Millers Oils Motorsport CRX LS 75w-90 NT+ Nanodrive Fully Synthetic Transmission Oil
RRP £21.95
£21.95
Price Beater
Fuchs TITAN SINTOPOID SAE 75W-90 synthetic gear oil
Febi Bilstein 75w-85 Axle Drive Oil GL-5 | 48785
Millers Oils XF Premium MTF 75w Fully Synthetic Transmission Oil
Opie Price
£8.95
Price Beater
Comma SX 75w-90 GL-4 Semi Synthetic Transmission Fluid
Opie Price
£9.95
Price Beater
Millers Oils EE Performance MTF 75w Gear Oil
Opie Price
£19.99
Price Beater
If you are looking for a specific API gear oil specification, take a look at our extensive range here.