{"product_id":"castrol-gtx-ultra-clean-5w-30-engine-oil-3-lts","title":"Castrol GTX ULTRA CLEAN 5W-30 Engine Oil 3 Lts","description":"Castrol 5w30 GTX ULTRA CLEAN Engine Oil — 3 Lts\r\n\r\nCastrol GTX Ultra Clean with Active Molecules technology delivering up to 3x cleaner pistons vs the industry standard — protecting long-term engine efficiency. Engineered for petrol and diesel passenger cars prioritising engine cleanliness and sludge prevention.\r\n\r\nViscosity \u0026amp; Temperature: The 5w30 multigrade rating means this oil flows freely at -35°C for fast cold-start protection and maintains SAE 30 viscosity at 100°C engine operating temperature. The low 5W cold-pour rating ensures quick oil circulation on startup while the SAE 30 high-temperature grade provides a robust lubricating film during sustained highway driving. Perfectly suited to India's diverse climate — from cold Himalayan mornings to peak-summer plains temperatures exceeding 45°C.\r\n\r\nUnderstanding 5w30: The first number (5W) is the Winter cold-flow rating — lower means better oil flow at cold start, protecting your engine in the critical first seconds after ignition. The second number (30) is the high-temperature viscosity at 100°C — higher means a thicker, stronger protective film under heat and load.\r\n\r\nPack size: The 3 Lts pack is ideal for a partial refill or top-up for modern petrol and diesel passenger cars, especially stop-start engines. Change oil at your manufacturer's recommended interval — typically every 5,000–10,000 km — to maximise engine life and fuel efficiency.","brand":"ajmeratyres","offers":[{"title":"Default Title","offer_id":45911304208618,"sku":null,"price":0.0,"currency_code":"INR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0708\/3186\/6090\/files\/Castrol_GTX_ULTRA_CLEAN_5w30_3_Lts.png?v=1773898679","url":"https:\/\/www.ajmeratyres.com\/products\/castrol-gtx-ultra-clean-5w-30-engine-oil-3-lts","provider":"ajmeratyres","version":"1.0","type":"link"}