EP90 Gear Oil GL4 is a Suplhur/Phosphorus SAE 90 Gear oil with extreme pressure additives. Used in Hypiod rear axles, differentials gear boxes, steering boxes and other heavily loaded gears fitted to all types of vehicles from when idle. Economical in use due to long life characteristics. EP90 Gear Oil GL4 protects bearings and gear teeth in severe working conditions. Protects against rust and corrosion even when idle.

EP90 Gear Oil GL4 spec

API: GL3/GL4

MIL-L-2105

CS 3000A

ZF TE-ML. 02

Difference between GL4 & GL5

It should be noted that Rye Oil Ltd is a blender of lubricants and as such, we can blend anything that is required. If you need an 80w90 gear oil GL4 we can make it for you. If you need a gear oil that isn’t listed in the shop please contact us

Let me start by telling you that Gear Oil’s are not Transmission Oils. Transmissions have gears and synchronisers. These of which require a different additive package. If you are wondering if GL5 covers GL4 the answer isnt simple. GL5 covers GL4 in terms of protection, but contains to much detergent and will strip any white metals and strip any brass synchronisers.

Simply, GL4 gear oils are intended for axles with spiral bevel and hypoid gears operating under moderate to severe conditions of speeds and loads.  GL-4 gear oils also have a low detergent level, which help protect yellow and phosphorous metal elements of the gear box. GL-5 is recommended for high-speed loads and also for low-speed torque systems without yellow metals.

If you any questions about this product or any other please contact us.

It should also be noted that we can supply ZX1 a total friction eliminator see the product in our shop for more information.

£8 DELIVERY SURCHARGE

AB10 – AB16

AB21 – AB25

AB30 – AB39

AB41 – AB45

AB51 – AB56

DD8 – DD11

FK7 – FK21

IV1 – IV28

IV30 – IV32

IV36

IV40

IV52 – IV54

IV63

KW1 – KW3

KW5 – KW14

KY99

PA21 – PA40

PA80

PH3 – PH13

PH15 – PH26

PH30 – PH41

PH49 – PH50

WE DO NOT DELIER TO THE FOLLOWING POST CODES:

HS1 – HS9

IV41 – IV49

IV51

IV55 – IV56

KA27 – KA28

KW15 – KW17

PA20

PA41 PA49

PA60 – 78

PH42 – PH44

ZE1 – ZE3

NO ISLANDS 

UK mainland courier services do not include parcel delivery to places that are not on the main island, like the Isle of Man, the Channel Islands, the Isle of Wight, and the Isles of Scilly. This also includes Northern Ireland, and remote areas of Scotland. Isle of Man postcodes are IM, Guernsey is GY, and Jersey is JE.