Classic vehicle gear oil from Opie Oils
Classic car gear oil for manual gearboxes and differentials is available here. The term "classic" is so broad that there is something of a bewildering choice of gear oil available for classic cars (and veteran and vintage too)...
Many modern gear oils are a better choice for a classic car than the original fill; a selection of popular choices is included here along with a range of classic gear oils from Millers and Silkolene offering modern additives in period formulations. Modern additive packages and formulations provide maximum protection and actively prolong the life and performance of treasured vehicle gearbox components compared to original fill oils.