10 bestSynthetic Motor Oilsof October 2025
112M consumers helped this year.
1

Motul 7100 4T Fully Synthetic Petrol Engine Oil for Bikes, 10W-40 - 1L
Motul

9.9
2

Shell Helix HX8 5W-30 API SN Plus Fully Synthetic Engine Oil for Petrol, Diesel & CNG Cars (3.5 L), medium
Shell

9.8
3

Castrol MAGNATEC 3416662 Stop-Start 5W-30 Full Synthetic Engine Oil for Petrol, Diesel and CNG Cars (3.5L)
Castrol

9.6
4

Shell Helix Ultra 5W-40 Fully Synthetic Motor Oil for Diesel and Gasoline Engines (4 L)
Shell

9.4
5

Castrol POWER1 Cruise 20W-50 4T Synthetic Engine Oil for Bikes | With 3-in-1 Synthetic Technology | Meant for High Performance Bikes | BS VI Ready | 1 L
Castrol

9.2
6

Castrol EDGE 5W-30 LL Advanced Full Synthetic Engine Oil | Power Boost Technology | Get More Power & Acceleration | For Petrol, Diesel, CNG & Hybrid Cars | 4L
Castrol

8.9
7

Shell Advance 4T AX7 15W-50 API SM Synthetic Technology Motorbike Engine Oil for Royal Enfield (2.5 L)
Shell

8.7
8

Castrol MAGNATEC SUV 5W-40 API S40 ACEA C3 Full Synthetic Engine Oil for Petrol, CNG and Diesel SUV 1L
Castrol

8.4
9

Liqui Moly (2011) Top Tec 4200 5W-30 Synthetic Car Motor Oil - 5 L Jug
Liqui Moly

8.1
10

Liqui Moly 8578 Molygen New Generation 5W-40 Fully Synthetic Engine Oil, 4 Litre (1 Piece)
Liqui Moly

7.8
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