Fuel-system cleaning
Helps manage deposits and supports good combustion conditions when used as directed.
GLOBAL PRODUCT CATALOGUE
Care built for the miles ahead.
Purpose-built fuel and engine care for everyday drivers. Clear instructions, traceable products, and direct worldwide support.
Authenticity checkedBatch traceabilityDirect support
ENGINE CARESmall format. Focused formula.
REFER & EARN · MINI PROGRAM REWARDS
Share care. Earn your bundle back.
Buy an eligible bundle in the Mini Program, then invite friends with your personal QR code or share card.
+20refund points when a friend completes their first valid order
+10refund points for your own valid repeat purchase
100points unlock an application to refund your eligible bundle payment
Mini Program rules apply. Applications are reviewed before an original-payment-method refund. Accepted refunds clear the refund-point balance. Web visits and saved cart selections do not create orders or reward points.
FUNCTIONAL CARE, CLEARLY EXPLAINED
Support for the systems that keep you moving.
Power maintenance
Supports fuel delivery and combustion performance as part of routine vehicle care.
Anti-wear care
Helps reduce friction and wear to provide ongoing engine-care support.
Results vary by vehicle, condition, fuel quality, oil, and use. Always follow the product label and vehicle manufacturer guidance.
THE ESSENTIALS
A focused care lineup.
Choose by engine type and follow the label instructions. Ask our support team about compatibility and availability.
USD reference prices are specific to the overseas channel. Mini Program prices and promotions are separate. Online payments are not open.
01Gasoline
Fuel Additive · Gasoline
100 ml · 1 bottle
02Engine oil
Nano-Copper Repair Agent
100 ml · 1 oil-change cycle
03Bundle
Fuel Additive + Repair Bundle
10 additive bottles + 1 repair bottle
04Diesel
Fuel Additive · Diesel
100 ml · Diesel engines only
THE DR. YUAN STANDARD
Responsible care. Clear guidance.
Clear directions
Every product is matched to a specific use and engine type. Follow the product label and vehicle manufacturer guidance.
Traceable supply
Authorized supply and retained lot information support product inquiries.
Human support
Ask about compatibility before purchase. No guaranteed fuel savings or mechanical repairs are promised.
DELIVERY INFORMATION
Ask us about international availability.
Automotive liquids can be subject to carrier and destination restrictions. Product availability, shipping, taxes, and any return terms must be confirmed before a future order can be placed.
- Contact support for destination availability
- Shipping and taxes require an individual quote
- Online payments are not open on this catalogue