The HKS Direct Sludge Remover (DSR) is an internal engine cleaner. A great way to clean all the deposits from inside your engine. Perfect to help maintain the performance of your engine and extend its life.
Features
- MADE IN JAPAN
- Add to your old oil, idle and replace your oil and filter
- No wasted oil
- Will not harm engine if residual remains after change
Specifications
- Product name: Engine internal cleaning agent
- Content: 400ml
- Component: Mineral oil, glycol solvent, detergent dispersant
- Remarks: 4th, 3rd petroleum, Danger class III
Notes
- How to use
- When it is time change your old oil, stop the engine and add 1 product to the 3L to 6L of engine oil in your engine while the oil temperature is still hot.
- After adding the DSR, start the engine and clean the inside while idling for 15-20 minutes.
- When cleaning is complete, stop the engine, drain the oil, and replace the oil along with a new oil filter.
- Cannot be used with 2-stroke engines or rotary engines
We ship to the United States and 150 other countries.
Japan Post EMS & ePacket, FedEx, DHL and more.
HKS was founded in October 1973 by Hiroyuki Hasegawa, a former Yamaha engineer, and Goichi Kitagawa, with start-up capital from Sigma Automotive; the name comes from Hasegawa, Kitagawa and Sigma. It began in a small shed at the foot of Mount Fuji, in Fujinomiya, Shizuoka, and is still based there.
In 1974 HKS built one of the first bolt-on turbo kits, for the Nissan L20 engine in the Skyline, raising output from 115 to 160 PS. Turbocharging made its name; today it also makes exhausts, springs, shocks and coilover suspension, and it marked its 50th anniversary in 2023.
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About Nengun Performance
Since the year 2000, Nengun Performance has supplied over 500,000 parts direct from Fukuoka, Japan to 170 countries worldwide. If you have any questions, our experienced and friendly customer service team is always happy to help, please send us an enquiry.










