Older Gearbox Oil
For use where oils of 30 and 40 SAE rating were originally recommended. Suitable for older boxes of either straight cut, synchromesh, epicyclic design, or for overdrives (such as Laycock), both oils contain no EP additives which can cause serious damage to gearboxes containing yellow metals, or friction modifiers which can cause slipping in overdrives and pre-selector gearboxes.
GB Oil 30 is for vintage, veteran & classic gearboxes including bear boxes with straight, synchro, epicyclic gears, overdrives and pre-selector gearboxes. GB 30 = SAE 20w60 oil designed for use where SAE 30 oils were originally specified. GB300001F
Gear Box Oil 40 is used in vintage, veteran & classic gearboxes using straight, synchro or epicyclic gears, overdrives or pre-selector gearboxes. Gear Box Oil 40 = 25W-70 oil designed for use where SAE 40 or 50 oils were originally specified. GB400001
Gear Box Oil 40 is used in vintage, veteran & classic gearboxes using straight, synchro or epicyclic gears, overdrives or pre-selector gearboxes. Gear Box Oil 40 = 25W-70 oil designed for use where SAE 40 or 50 oils were originally specified. GB400005
An SAE 90/140 grade gear oil suitable for use in bevel, worm and pre-1960 hypoid gears. Rated GL-4 this gear oil does not possess the additive package found in later GL-5 gear oils which should not be used in veteran and vintage vehicles
An SAE 90/140 grade gear oil suitable for use in bevel, worm and pre-1960 hypoid gears. Rated GL-4 this gear oil does not possess the additive package found in later GL-5 gear oils which should not be used in veteran and vintage vehicles