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⚡️ Unlock peak engine performance and say goodbye to oil worries!
Mannol 9990 Motor Doctor is a 350 ml synthetic oil additive designed to boost oil pressure, reduce oil consumption, and prevent soot formation in both new and worn engines. Compatible with synthetic and mineral oils, it ensures smooth cold starts and extends engine life by forming a reliable lubricant film under tough conditions.






| ASIN | B00ZPO6UFK |
| Best Sellers Rank | #10,551 in Automotive ( See Top 100 in Automotive ) #88 in Oil & Fluid Additives |
| Brand | MANNOL |
| Brand Name | MANNOL |
| Container Type | Can |
| Customer Reviews | 4.6 out of 5 stars 259 Reviews |
| Item Form | Oil |
| Item Weight | 308 Grams |
| Item weight | 308 Grams |
| Liquid Volume | 300 Milliliters |
| Liquid volume | 300 Milliliters |
| Manufacturer | Mannol |
| Material | Synthetic |
| Model Number | MN9990-030ME |
| Number of Items | 1 |
| Number of Packs | 1 |
| Package information | Can |
| Part Number | MN9990-030ME |
| Recommended Uses For Product | Internal Combustion Engines |
| Recommended uses for product | Internal Combustion Engines |
| SAE J300 Viscosity Grade | 5W-30 |
| Specific Uses For Product | Suitable for Worn Out and New Engines |
| Unit Count | 350 Milliliters |
| Viscosity | 5w-30 |
R**E
Use every oil change.
Use this on every oil change for my well aged Toyota. Seems to work and help it from burning oil.
D**L
Un gran aditivo
Buen aditivo ..servicio de entrega muy rápido
M**N
Prima product
Ik heb een oudere auto met heel wat kilometers op de teller. Door slijtage was er frictie tussen verschillende motoronderdelen. Ik deed een blikje Mannol in het oliereservoir terwijl de motor nog warm was en sindsdien voel en hoor ik het verschil. Door de hogere viscositeit verbruikt de wagen nu ook beduidend minder olie.
W**Y
المنتج كما ف الوصف
تحت التجربة _المنتج وصل كما ف الصور..سعر جيد..شكرا امازون .. التوصيل سريع
J**R
Better than advertised,brilliant.
Just like the Mannol diesel (fuel) additive,the product is brilliant.Added to sump oil in a 1.6 hdi Peugeot engine of around 87000 vintage,the immediate difference was impressive,engine was smooth before but even quieter with the Mannol additive.Rgarding ratio I just introduced it with a 3.5 litre oil change,(total fluid including filter) and 1600 miles later the oil is noticeably clearer than before,ie not blackening within the first 100 miles post-change.Before the oil change I used Mannol engine flush as it's the only one you can safely drive for around 50 miles while it's in circulation,and that certainly left the engine interior very clean prior to renewing sump oil.Possibly due to using these Mannol products,I'm not certain,but in the 5 years I've had my car ,mostly urban runs,traffic etc with little motorway use,it's averaged 40mpg at best,38mpg mostly,and that was on premium/regular diesel mixed,but since feeding it's systems with the Mannol diet that mileage has shot up to a sustained 50+ mpg,and that's with heavy trailer use,town runs etc,absolutely brilliant stuff,I would recommend Mannol to anyone,especially at the Amazon prices and delivery etc.
Trustpilot
1 week ago
2 months ago