{ "id": 404, "date": "2026-06-22T13:19:43", "date_gmt": "2026-06-22T05:19:43", "guid": { "rendered": "https:\/\/www.katmoto.co.jp\/?post_type=product&p=404" }, "modified": "2026-06-22T13:19:43", "modified_gmt": "2026-06-22T05:19:43", "slug": "engine-flush-oil", "status": "publish", "type": "product", "link": "https:\/\/www.katmoto.co.jp\/en\/product\/engine-flush-oil\/", "title": { "rendered": "Engine Flush Oil" }, "content": { "rendered": "

Product Description<\/p>\n

KATMOTO Engine Flush Oil is a fast-acting internal engine cleaner added to the used oil shortly before an oil change. Its concentrated detergent-dispersant system dissolves and suspends sludge, varnish and deposits from oil galleries, rings and the valvetrain, which are then removed with the old oil at drain, restoring engine cleanliness and oil-flow efficiency for the fresh oil fill.<\/p>\n

 <\/p>\n

Key Performance Features<\/p>\n\n\n\n\n\n
Dissolves sludge & varnish<\/strong><\/p>\n

powerful detergents loosen and suspend internal deposits and sludge.<\/td>\n

Frees sticking rings<\/strong><\/p>\n

helps free stuck piston rings and clean the valvetrain.<\/td>\n<\/tr>\n

Restores oil flow<\/strong><\/p>\n

cleans oil galleries and the pickup for better fresh-oil circulation.<\/td>\n

Fast-acting<\/strong><\/p>\n

works in 10\u201315 minutes of idling before draining the old oil.<\/td>\n<\/tr>\n

Safe for seals<\/strong><\/p>\n

compatible with engine seals and gaskets at recommended use.<\/td>\n

Gasoline & diesel<\/strong><\/p>\n

suitable for gasoline and light-duty diesel engines.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

Applications & Performance Level<\/p>\n\n\n\n\n\n\n
Applications<\/td>\nGasoline and light-duty diesel engines, added to the used crankcase oil and idled for 10\u201315 minutes immediately before draining the old oil and refilling with fresh oil.<\/td>\n<\/tr>\n
Specification<\/td>\nPre-oil-change flush \u2014 internal engine cleaning before an oil change.
\nDetergent-dispersant \u2014 dissolves and suspends sludge, varnish and deposits.
\nSeal-safe \u2014 compatible with engine seals at recommended dosage.
\nGasoline & diesel use \u2014 suitable for gasoline and light-duty diesel engines.
\nImproves new-oil performance \u2014 restores cleanliness for the fresh oil fill.<\/td>\n<\/tr>\n
OEM Suitability<\/td>\nGeneral gasoline and light-duty diesel engines. Add to warm used oil, idle 10\u201315 minutes (do not drive), then drain and refill. Do not exceed the recommended idle time.<\/td>\n<\/tr>\n
Important Notice<\/td>\nFor idling use only \u2014 do not drive the vehicle with flush in the crankcase. Drain completely and refill with fresh oil. Not for use in engines with known severe mechanical wear.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>", "protected": false }, "author": 1, "featured_media": 0, "template": "", "meta": { "_acf_changed": false }, "product_category": [ 20 ], "class_list": [ "post-404", "product", "type-product", "status-publish", "hentry", "product_category-auto-care" ], "acf": [], "yoast_head": "\nEngine Flush Oil | Lubricant Additive | KATMOTO<\/title>\n<meta name=\"description\" content=\"KATMOTO Engine Flush Oil supports lubricant formulation, performance enhancement, OEM blending and distributor supply programs.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.katmoto.co.jp\/en\/product\/engine-flush-oil\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Engine Flush Oil | Lubricant Additive | KATMOTO\" \/>\n<meta property=\"og:description\" content=\"KATMOTO Engine Flush Oil supports lubricant formulation, performance enhancement, OEM blending and distributor supply programs.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.katmoto.co.jp\/en\/product\/engine-flush-oil\/\" \/>\n<meta property=\"og:site_name\" content=\"Nippon Synthetic Chemical Co., Ltd.\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/KatmotoSyntheticLubricant\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.katmoto.co.jp\/wp-content\/uploads\/2026\/06\/200L-oil.png\" \/>\n\t<meta property=\"og:image:width\" content=\"1448\" \/>\n\t<meta property=\"og:image:height\" content=\"1086\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/png\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data1\" content=\"1 minute\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/www.katmoto.co.jp\\\/en\\\/wp-json\\\/wp\\\/v2\\\/product\\\/404\\\/\",\"url\":\"https:\\\/\\\/www.katmoto.co.jp\\\/en\\\/wp-json\\\/wp\\\/v2\\\/product\\\/404\\\/\",\"name\":\"Engine Flush Oil | Lubricant Additive | KATMOTO\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/www.katmoto.co.jp\\\/en\\\/#website\"},\"datePublished\":\"2026-06-22T05:19:43+00:00\",\"description\":\"KATMOTO Engine Flush Oil supports lubricant formulation, performance enhancement, OEM blending and distributor supply programs.\",\"breadcrumb\":{\"@id\":\"https:\\\/\\\/www.katmoto.co.jp\\\/en\\\/wp-json\\\/wp\\\/v2\\\/product\\\/404\\\/#breadcrumb\"},\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\\\/\\\/www.katmoto.co.jp\\\/en\\\/wp-json\\\/wp\\\/v2\\\/product\\\/404\\\/\"]}]},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\\\/\\\/www.katmoto.co.jp\\\/en\\\/wp-json\\\/wp\\\/v2\\\/product\\\/404\\\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\\\/\\\/www.katmoto.co.jp\\\/en\\\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Engine Flush Oil\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\\\/\\\/www.katmoto.co.jp\\\/en\\\/#website\",\"url\":\"https:\\\/\\\/www.katmoto.co.jp\\\/en\\\/\",\"name\":\"Nippon Synthetic Chemical Co., Ltd.\",\"description\":\"\",\"publisher\":{\"@id\":\"https:\\\/\\\/www.katmoto.co.jp\\\/#organization\"},\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\\\/\\\/www.katmoto.co.jp\\\/en\\\/?s={search_term_string}\"},\"query-input\":{\"@type\":\"PropertyValueSpecification\",\"valueRequired\":true,\"valueName\":\"search_term_string\"}}],\"inLanguage\":\"en-US\"},{\"@type\":\"Organization\",\"@id\":\"https:\\\/\\\/www.katmoto.co.jp\\\/#organization\",\"name\":\"Nippon Synthetic Chemical Co., Ltd.\",\"alternateName\":[\"KATMOTO\",\"\u65e5\u672c\u5408\u6210\u5316\u5b66\u682a\u5f0f\u4f1a\u793e\",\"\u30cb\u30db\u30f3\u30b4\u30a6\u30bb\u30a4\u30ab\u30ac\u30af\"],\"url\":\"https:\\\/\\\/www.katmoto.co.jp\\\/\",\"logo\":{\"@type\":\"ImageObject\",\"@id\":\"https:\\\/\\\/www.katmoto.co.jp\\\/#\\\/schema\\\/logo\\\/image\\\/\",\"url\":\"https:\\\/\\\/www.katmoto.co.jp\\\/wp-content\\\/uploads\\\/2026\\\/05\\\/katmoto-logo-b.png\",\"contentUrl\":\"https:\\\/\\\/www.katmoto.co.jp\\\/wp-content\\\/uploads\\\/2026\\\/05\\\/katmoto-logo-b.png\",\"caption\":\"KATMOTO synthetic lubricant brand logo\"},\"image\":\"https:\\\/\\\/www.katmoto.co.jp\\\/wp-content\\\/uploads\\\/2026\\\/04\\\/ban-bg01.jpg\",\"sameAs\":[\"https:\\\/\\\/www.facebook.com\\\/KatmotoSyntheticLubricant\",\"https:\\\/\\\/www.instagram.com\\\/katmotolube\\\/\"],\"legalName\":\"Nippon Synthetic Chemical Co., Ltd.\",\"description\":\"Nippon Synthetic Chemical Co., Ltd. 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