Porsche approved, fully synthetic, the right grade, 2 for 1 at the moment = £32 for 10 litres. Why shouldn't I try it..?
http://www.halfords.com/webapp/wcs/stores/servlet/product_storeId_10001_catalogId_10151_productId_197033_langId_-1_CarSelectorCatalogId__varient__categoryId_77306_crumb_33958-31345-77305_parentcategoryrn_77305
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