[{"id":537444221147,"handle":"castrol","title":"Castrol","updated_at":"2026-07-09T13:10:03+01:00","body_html":"\u003cp\u003eView our full range of premium Castrol Oils, Additives \u0026amp; Accessories below!\u003c\/p\u003e","published_at":"2026-07-09T13:09:29+01:00","sort_order":"most-relevant","template_suffix":"","disjunctive":false,"rules":[{"column":"vendor","relation":"equals","condition":"Castrol"}],"published_scope":"global","image":{"created_at":"2026-07-09T13:09:28+01:00","alt":null,"width":2000,"height":590,"src":"\/\/thmp.ie\/cdn\/shop\/collections\/family-shot-banner.png?v=1783598968"}},{"id":507000717531,"handle":"gear-oil","updated_at":"2026-07-09T15:18:10+01:00","published_at":"2025-03-03T09:44:10+00:00","sort_order":"best-selling","template_suffix":"","published_scope":"global","title":"Gear Oil","body_html":"\u003cp data-start=\"0\" data-end=\"61\"\u003e\u003cstrong data-start=\"0\" data-end=\"59\"\u003eHigh-Quality Gear Oils – Mannol \u0026amp; Castrol | Tadhg Hawes\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp data-start=\"63\" data-end=\"403\"\u003eKeep your transmission running smoothly with \u003cstrong data-start=\"108\" data-end=\"129\"\u003epremium gear oils\u003c\/strong\u003e from \u003cstrong data-start=\"135\" data-end=\"145\"\u003eMannol\u003c\/strong\u003e and \u003cstrong data-start=\"150\" data-end=\"161\"\u003eCastrol\u003c\/strong\u003e, available at \u003cstrong data-start=\"176\" data-end=\"191\"\u003eTadhg Hawes\u003c\/strong\u003e. Our selection includes \u003cstrong data-start=\"216\" data-end=\"274\"\u003efully synthetic, semi-synthetic, and mineral gear oils\u003c\/strong\u003e, designed to provide \u003cstrong data-start=\"296\" data-end=\"361\"\u003eexceptional lubrication, wear protection, and smooth shifting\u003c\/strong\u003e for manual and automatic transmissions.\u003c\/p\u003e\n\u003cp data-start=\"405\" data-end=\"725\"\u003e\u003cstrong data-start=\"405\" data-end=\"425\"\u003eMannol gear oils\u003c\/strong\u003e offer advanced protection against friction and extreme temperatures, while \u003cstrong data-start=\"501\" data-end=\"522\"\u003eCastrol gear oils\u003c\/strong\u003e are engineered to enhance \u003cstrong data-start=\"549\" data-end=\"590\"\u003etransmission efficiency and longevity\u003c\/strong\u003e. Whether you need \u003cstrong data-start=\"609\" data-end=\"681\" data-is-only-node=\"\"\u003e75W-90, 80W-90, 75W-140, or other high-performance transmission oils\u003c\/strong\u003e, we stock only the best for your vehicle.\u003c\/p\u003e\n\u003cp data-start=\"727\" data-end=\"887\" data-is-last-node=\"\" data-is-only-node=\"\"\u003eShop our \u003cstrong data-start=\"736\" data-end=\"759\"\u003egear oil collection\u003c\/strong\u003e today for \u003cstrong data-start=\"770\" data-end=\"809\"\u003esuperior protection and performance\u003c\/strong\u003e, ensuring your gearbox operates at peak efficiency in all driving conditions.\u003c\/p\u003e","image":{"created_at":"2025-03-03T09:44:10+00:00","alt":null,"width":942,"height":530,"src":"\/\/thmp.ie\/cdn\/shop\/collections\/4.jpg?v=1741007358"}},{"id":507000783067,"handle":"transmission-fluid","updated_at":"2026-07-09T15:19:02+01:00","published_at":"2025-03-03T09:45:36+00:00","sort_order":"best-selling","template_suffix":"","published_scope":"global","title":"Transmission Fluid","body_html":"\u003cp data-start=\"0\" data-end=\"66\"\u003e\u003cstrong data-start=\"0\" data-end=\"64\"\u003ePremium Transmission Fluids – Mannol \u0026amp; Castrol | Tadhg Hawes\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp data-start=\"68\" data-end=\"426\"\u003eEnsure \u003cstrong data-start=\"75\" data-end=\"98\"\u003esmooth gear changes\u003c\/strong\u003e and \u003cstrong data-start=\"103\" data-end=\"139\"\u003eoptimal transmission performance\u003c\/strong\u003e with \u003cstrong data-start=\"145\" data-end=\"181\"\u003ehigh-quality transmission fluids\u003c\/strong\u003e from \u003cstrong data-start=\"187\" data-end=\"197\"\u003eMannol\u003c\/strong\u003e and \u003cstrong data-start=\"202\" data-end=\"213\"\u003eCastrol\u003c\/strong\u003e, available at \u003cstrong data-start=\"228\" data-end=\"243\"\u003eTadhg Hawes\u003c\/strong\u003e. Our range includes \u003cstrong data-start=\"264\" data-end=\"331\"\u003efully synthetic, semi-synthetic, and mineral ATF and MTF fluids\u003c\/strong\u003e, designed for \u003cstrong data-start=\"346\" data-end=\"384\"\u003emanual and automatic transmissions\u003c\/strong\u003e in cars, vans, and commercial vehicles.\u003c\/p\u003e\n\u003cp data-start=\"428\" data-end=\"799\"\u003e\u003cstrong data-start=\"428\" data-end=\"458\"\u003eMannol transmission fluids\u003c\/strong\u003e provide \u003cstrong data-start=\"467\" data-end=\"532\"\u003eexceptional lubrication, wear protection, and heat resistance\u003c\/strong\u003e, while \u003cstrong data-start=\"540\" data-end=\"571\"\u003eCastrol transmission fluids\u003c\/strong\u003e are formulated to enhance \u003cstrong data-start=\"598\" data-end=\"639\" data-is-only-node=\"\"\u003egearbox longevity and fuel efficiency\u003c\/strong\u003e. Whether you need \u003cstrong data-start=\"658\" data-end=\"733\"\u003eATF Dexron, 75W-90, 80W-90, or other high-performance transmission oils\u003c\/strong\u003e, we stock only trusted brands that meet \u003cstrong data-start=\"774\" data-end=\"796\"\u003eOEM specifications\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp data-start=\"801\" data-end=\"967\" data-is-last-node=\"\" data-is-only-node=\"\"\u003eShop our \u003cstrong data-start=\"810\" data-end=\"843\"\u003etransmission fluid collection\u003c\/strong\u003e today for \u003cstrong data-start=\"854\" data-end=\"885\"\u003esuperior gearbox protection\u003c\/strong\u003e, ensuring \u003cstrong data-start=\"896\" data-end=\"940\"\u003esmooth shifting and reliable performance\u003c\/strong\u003e in all driving conditions.\u003c\/p\u003e","image":{"created_at":"2025-03-03T09:45:35+00:00","alt":null,"width":942,"height":530,"src":"\/\/thmp.ie\/cdn\/shop\/collections\/shutterstock_685205113.jpg?v=1741007461"}}]
Castrol B373 is a mineral-based, extreme pressure gear oil which combines limited slip performance with excellent load-carrying ability, particularly suited to clutch-plate type limited slip differentials fitted to race and rally competition vehicles.
SAE 90, API GL-6
Maximises limited slip differential performance under harsh, high-load competition conditions
