Slick 50 do make power steering fluid (not an additive): http://www.halfords.com/webapp/wcs/stores/servlet/product_storeId_10001_catalogId_10151_productId_204495_langId_-1_CarSelectorCatalogId__varient__categoryId_58756_crumb_33958-31345-58755_parentcategoryrn_58755 Whether or not it's compatible is another matter......
