{"product_id":"castrol-gtx-ultraclean-10w-40-engine-oil-4l","title":"Castrol GTX Ultraclean 10W-40 Engine Oil, 4L","description":"\u003cp\u003eCastrol GTX Ultraclean is a 10W-40 engine oil with an Ultraclean formula, supplied in a 4 litre container. It is for petrol and diesel cars, making it a popular choice where the handbook calls for 10W-40. Check your vehicle manual before you top up or change the oil.\u003c\/p\u003e\u003ch3\u003eKey features\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e10W-40 viscosity\u003c\/li\u003e\n\u003cli\u003eUltraclean formula\u003c\/li\u003e\n\u003cli\u003eFor petrol and diesel cars\u003c\/li\u003e\n\u003cli\u003e4 litre container\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eCastrol\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct\u003c\/td\u003e\n\u003ctd\u003eGTX Ultraclean\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eGrade\u003c\/td\u003e\n\u003ctd\u003e10W-40\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSize\u003c\/td\u003e\n\u003ctd\u003e4L\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003ch3\u003eWhich Castrol engine oil do I need?\u003c\/h3\u003e\u003cp\u003eThe handbook lists the correct grade. If it shows 10W-40, this GTX oil matches the viscosity.\u003c\/p\u003e\u003ch3\u003eTop up steps\u003c\/h3\u003e\u003col\u003e\n\u003cli\u003ePark level with the engine cool.\u003c\/li\u003e\n\u003cli\u003eCheck the dipstick.\u003c\/li\u003e\n\u003cli\u003ePour slowly and recheck.\u003c\/li\u003e\n\u003c\/ol\u003e\u003ch3\u003eFAQs\u003c\/h3\u003e\u003ch4\u003eIs it for petrol and diesel?\u003c\/h4\u003e\u003cp\u003eYes, it is listed for petrol and diesel cars.\u003c\/p\u003e","brand":"Castrol","offers":[{"title":"Default Title","offer_id":67824513548561,"sku":"DS-4928922","price":40.99,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0986\/7323\/0097\/files\/castrol-gtx-ultraclean-10w-40-engine-oil-4l-1.jpg?v=1792515114","url":"https:\/\/diysmith.co.uk\/products\/castrol-gtx-ultraclean-10w-40-engine-oil-4l","provider":"DIYSmith","version":"1.0","type":"link"}